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TDMS Study 89029-05 Pathology Tables

NTP                                    STATISTICAL ANALYSIS OF NON-NEOPLASTIC LESIONS                          REPORT: PEIRPT10
LAB: I. I. T. Research Inst                               MAGNETIC FIELDS (EMF)                                DATE: 01/28/98

EXPERIMENT: 89029 TEST: 05                                                                                     TIME: 10:45:12
TEST TYPE:  CHRONIC                             CAGES FROM 0000 TO LAST CAGE                                   PAGE:
CONT: NO1-ES-25351                              ROUTE: MAGNETIC FIELDS                                         NTP C#: C89029
PATHOLOGIST: KOVATCH, R.                                                                                       CAS: ELECTROMAG
NTP                                    STATISTICAL ANALYSIS OF NON-NEOPLASTIC LESIONS                          REPORT: PEIRPT10   
LAB: I. I. T. Research Inst                               MAGNETIC FIELDS (EMF)                                DATE: 01/28/98     
EXPERIMENT: 89029 TEST: 05                                                                                     TIME: 10:45:12     
TEST TYPE:  CHRONIC                             CAGES FROM 0000 TO LAST CAGE                                   PAGE:              
CONT: NO1-ES-25351                              ROUTE: MAGNETIC FIELDS                                         NTP C#: C89029     
PATHOLOGIST: KOVATCH, R.                                                                                       CAS: ELECTROMAG    



SUMMARY OF STATISTICALLY SIGNIFICANT (P<=.05) RESULTS
IN THE ANALYSIS OF               MAGNETIC FIELDS (EMF)
===============================================================

Male Rats
------------
Organ                                 Morphology
-----                                 ----------
Adrenal Cortex                         Angiectasis
                                       Vacuolization Cytoplasmic Diffuse
Bone Marrow                            Hemorrhage
Harderian Gland                        Atrophy Focal
Intestine Small, Ileum: Peyer's Patch  Hyperplasia Lymphoid
Islets, Pancreatic                     Hyperplasia Focal
Liver                                  Basophilic Focus
                                       Degeneration Cystic Focal
Liver: Bile Duct                       Hyperplasia
Lung                                   Infiltration Cellular Histiocyte
                                       Infiltration Cellular Lymphocyte
                                       Metaplasia Focal Osseous
Lymph Node, Mandibular                 Hemorrhage
                                       Infiltration Cellular Histiocyte
Lymph Node, Mesenteric                 Infiltration Cellular Histiocyte
Mammary Gland                          Galactocele
Mammary Gland: Epithelium              Hyperplasia
Nose                                   Inflammation Chronic
Nose: Olfactory Epithelium             Cytoplasmic Alteration
Pancreas                               Infiltration Cellular Lymphocyte
Pineal Gland                           Mineralization
Pituitary Gland: Pars Distalis         Cyst
Prostate                               Atrophy
                                       Inflammation Acute
                                       Inflammation Chronic
Spleen                                 Congestion
                                       Fibrosis
Stomach, Glandular                     Erosion Focal
Testes: Interstitial Cell              Hyperplasia Focal
Thymus                                 Atrophy
Thyroid Gland                          Ultimobranchial Cyst
Trachea                                Inflammation Chronic
===============================================================
Female Rats
------------
Organ                                  Morphology
-----                                  ----------
Adrenal Cortex                         Hyperplasia Focal
                                       Hypertrophy Focal
Bone Marrow                            Depletion Cellular
Bone: Cranium                          Hyperostosis
Bone: Femur                            Hyperostosis
Bone: Turbinate                        Hyperostosis
NTP                                    STATISTICAL ANALYSIS OF NON-NEOPLASTIC LESIONS                          REPORT: PEIRPT10   
LAB: I. I. T. Research Inst                               MAGNETIC FIELDS (EMF)                                DATE: 01/28/98     
EXPERIMENT: 89029 TEST: 05                                                                                     TIME: 10:45:12     
TEST TYPE:  CHRONIC                             CAGES FROM 0000 TO LAST CAGE                                   PAGE:              
CONT: NO1-ES-25351                              ROUTE: MAGNETIC FIELDS                                         NTP C#: C89029     
PATHOLOGIST: KOVATCH, R.                                                                                       CAS: ELECTROMAG    

Clitoral Gland                         Cyst
Harderian Gland                        Infiltration Cellular Lymphocyte
Heart                                  Cardiomyopathy
Intestine Small, Ileum: Peyer's Patch  Hyperplasia Lymphoid
Kidney                                 Nephropathy
Kidney: Renal Tubule                   Pigmentation
Liver                                  Basophilic Focus
                                       Clear Cell Focus
                                       Eosinophilic Focus
                                       Infiltration Cellular Histiocyte
Lung                                   Infiltration Cellular Histiocyte
                                       Infiltration Cellular Lymphocyte
Lung: Interstitium                     Inflammation Chronic
Lymph Node, Mandibular                 Congestion
                                       Degeneration Cystic
                                       Hyperplasia Lymphoid
Mammary Gland                          Cyst
Mesentery: Fat                         Necrosis
Nose: Nasolacrimal Duct                Inflammation Chronic
Nose: Olfactory Epithelium             Cytoplasmic Alteration
Pancreas: Acinus                       Atrophy Focal
Pituitary Gland: Pars Distalis         Angiectasis Focal
Stomach, Forestomach: Epithelium       Hyperplasia
Stomach, Glandular: Glands             Cyst
Thymus                                 Hemorrhage
Thyroid Gland: C-Cell                  Hyperplasia
                                       Hyperplasia Focal
Trachea                                Inflammation Chronic
===============================================================
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 1

Statistical Analysis of Non-neoplastic Lesions in        Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex                                                                                                                   |
|     Angiectasis                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     5/99 (5%)    12/100 (12%) 2/100 (2%)   3/100 (3%)  |58/100 (58%) 55/100 (55%) 50/100 (50%) 59/100 (59%) |
|POLY-3 ADJUSTED (b)|     5.8%         14.7%        2.4%         3.7%        |65.8%        60.7%        55.7%        65.8%        |
|TERMINAL (d)       |     4/57 (7%)    10/46 (22%)  2/47 (4%)    3/48 (6%)   |45/59 (76%)  47/68 (69%)  41/60 (68%)  43/61 (71%)  |
|FIRST INCIDENCE    |     670          624          736 (T)      736 (T)     |613          641          617          522          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.081N     P=0.024 *    P=0.292N     P=0.448N    |P=0.232      P=0.081N     P=0.108N     P=0.498N     |
|POLY 3             |     P=0.077N     P=0.049 *    P=0.230N     P=0.390N    |P=0.295      P=0.281N     P=0.098N     P=0.563      |
|POLY 1.5           |     P=0.072N     P=0.055      P=0.225N     P=0.376N    |P=0.257      P=0.326N     P=0.125N     P=0.486      |
|POLY 6             |     P=0.081N     P=0.044 *    P=0.234N     P=0.403N    |P=0.396      P=0.230N     P=0.069N     P=0.432N     |
|LOGISTIC REGRESSION|     P=0.075N     P=0.042 *    P=0.232N     P=0.401N    |P=0.233      P=0.129N     P=0.064N     P=0.508      |
|COCH-ARM / FISHERS |     P=0.068N     P=0.066      P=0.218N     P=0.355N    |P=0.313      P=0.388N     P=0.160N     P=0.500      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex                                                                                                                   |
|     Hematopoietic Cell Proliferation                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/99 (3%)    7/100 (7%)   5/100 (5%)   2/100 (2%)  |2/100 (2%)   4/100 (4%)   6/100 (6%)   4/100 (4%)   |
|POLY-3 ADJUSTED (b)|     3.5%         8.6%         6.0%         2.5%        |2.3%         4.5%         6.8%         4.7%         |
|TERMINAL (d)       |     1/57 (2%)    6/46 (13%)   2/47 (4%)    2/48 (4%)   |1/59 (2%)    3/68 (4%)    3/60 (5%)    4/61 (7%)    |
|FIRST INCIDENCE    |     674          624          672          736 (T)     |673          674          639          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.176N     P=0.104      P=0.322      P=0.562N    |P=0.486      P=0.398      P=0.157      P=0.356      |
|POLY 3             |     P=0.173N     P=0.144      P=0.347      P=0.526N    |P=0.479      P=0.360      P=0.148      P=0.335      |
|POLY 1.5           |     P=0.164N     P=0.153      P=0.354      P=0.514N    |P=0.477      P=0.351      P=0.143      P=0.331      |
|POLY 6             |     P=0.181N     P=0.135      P=0.341      P=0.538N    |P=0.489      P=0.372      P=0.154      P=0.347      |
|LOGISTIC REGRESSION|     P=0.167N     P=0.140      P=0.346      P=0.530N    |P=0.485      P=0.362      P=0.143      P=0.356      |
|COCH-ARM / FISHERS |     P=0.152N     P=0.170      P=0.366      P=0.495N    |P=0.500      P=0.341      P=0.140      P=0.341      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 2

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex                                                                                                                   |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     12/99 (12%)  15/100 (15%) 9/100 (9%)   11/100 (11%)|11/100 (11%) 24/100 (24%) 12/100 (12%) 10/100 (10%) |
|POLY-3 ADJUSTED (b)|     13.8%        18.2%        10.8%        13.5%       |12.7%        26.2%        13.7%        11.8%        |
|TERMINAL (d)       |     8/57 (14%)   10/46 (22%)  8/47 (17%)   8/48 (17%)  |6/59 (10%)   18/68 (27%)  10/60 (17%)  10/61 (16%)  |
|FIRST INCIDENCE    |     573          619          726          565         |494          532          656          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.430N     P=0.184      P=0.467N     P=0.529     |P=0.082N     P=0.037 *    P=0.527      P=0.470N     |
|POLY 3             |     P=0.409N     P=0.287      P=0.354N     P=0.563N    |P=0.081N     P=0.017 *    P=0.510      P=0.523N     |
|POLY 1.5           |     P=0.390N     P=0.310      P=0.337N     P=0.534N    |P=0.081N     P=0.014 *    P=0.504      P=0.527N     |
|POLY 6             |     P=0.429N     P=0.264      P=0.371N     P=0.587     |P=0.076N     P=0.020 *    P=0.520      P=0.507N     |
|LOGISTIC REGRESSION|     P=0.411N     P=0.286      P=0.346N     P=0.562N    |P=0.078N     P=0.014 *    P=0.521      P=0.500N     |
|COCH-ARM / FISHERS |     P=0.363N     P=0.350      P=0.314N     P=0.490N    |P=0.069N     P=0.012 *    P=0.500      P=0.500N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex                                                                                                                   |
|     Hypertrophy Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/99 (3%)    3/100 (3%)   6/100 (6%)   3/100 (3%)  |3/100 (3%)   0/100 (0%)   1/100 (1%)   5/100 (5%)   |
|POLY-3 ADJUSTED (b)|     3.5%         3.7%         7.2%         3.7%        |3.5%         0.0%         1.1%         5.9%         |
|TERMINAL (d)       |     2/57 (4%)    1/46 (2%)    6/47 (13%)   2/48 (4%)   |1/59 (2%)    0/68 (0%)    1/60 (2%)    3/61 (5%)    |
|FIRST INCIDENCE    |     659          581          736 (T)      662         |674          ---          737 (T)      715          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.558N     P=0.597      P=0.168      P=0.601     |P=0.043 *    P=0.103N     P=0.297N     P=0.390      |
|POLY 3             |     P=0.548N     P=0.640      P=0.234      P=0.636     |P=0.038 *    P=0.114N     P=0.300N     P=0.355      |
|POLY 1.5           |     P=0.538N     P=0.649      P=0.241      P=0.647     |P=0.038 *    P=0.117N     P=0.303N     P=0.349      |
|POLY 6             |     P=0.557N     P=0.631      P=0.228      P=0.627     |P=0.038 *    P=0.110N     P=0.295N     P=0.369      |
|LOGISTIC REGRESSION|     P=0.549N     P=0.655      P=0.231      P=0.634     |P=0.042 *    P=0.114N     P=0.294N     P=0.376      |
|COCH-ARM / FISHERS |     P=0.522N     P=0.654N     P=0.254      P=0.654N    |P=0.043 *    P=0.123N     P=0.311N     P=0.360      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 3

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex                                                                                                                   |
|     Necrosis                                                                                                                    |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    1/100 (1%)   0/100 (0%)   0/100 (0%)  |1/100 (1%)   3/100 (3%)   0/100 (0%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         0.0%         0.0%        |1.2%         3.3%         0.0%         1.2%         |
|TERMINAL (d)       |     0/57 (0%)    1/46 (2%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          736 (T)      ---          ---         |553          590          ---          673          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.607N     P=0.457      (e)          (e)         |P=0.466N     P=0.333      P=0.498N     P=0.760      |
|POLY 3             |     P=0.607N     P=0.490      (e)          (e)         |P=0.460N     P=0.324      P=0.497N     P=0.758      |
|POLY 1.5           |     P=0.603N     P=0.495      (e)          (e)         |P=0.463N     P=0.317      P=0.499N     P=0.756      |
|POLY 6             |     P=0.611N     P=0.486      (e)          (e)         |P=0.453N     P=0.335      P=0.494N     P=0.757N     |
|LOGISTIC REGRESSION|     (e)          P=0.457      (e)          (e)         |P=0.355N     P=0.227      P=0.445N     P=0.729N     |
|COCH-ARM / FISHERS |     P=0.597N     P=0.503      (e)          (e)         |P=0.458N     P=0.311      P=0.500N     P=0.751N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex                                                                                                                   |
|     Pigmentation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    0/100 (0%)   1/100 (1%)   0/100 (0%)  |2/100 (2%)   0/100 (0%)   2/100 (2%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     1.2%         0.0%         1.2%         0.0%        |2.3%         0.0%         2.3%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    1/47 (2%)    0/48 (0%)   |1/59 (2%)    0/68 (0%)    2/60 (3%)    0/61 (0%)    |
|FIRST INCIDENCE    |     647          ---          736 (T)      ---         |655          ---          737 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.509N     P=0.523N     P=0.733      P=0.515N    |P=0.320N     P=0.215N     P=0.684N     P=0.232N     |
|POLY 3             |     P=0.500N     P=0.511N     P=0.755      P=0.511N    |P=0.327N     P=0.229N     P=0.686N     P=0.240N     |
|POLY 1.5           |     P=0.499N     P=0.506N     P=0.758      P=0.506N    |P=0.325N     P=0.233N     P=0.689N     P=0.243N     |
|POLY 6             |     P=0.501N     P=0.516N     P=0.752      P=0.516N    |P=0.326N     P=0.224N     P=0.681N     P=0.235N     |
|LOGISTIC REGRESSION|     P=0.501N     P=0.479N     P=0.760N     P=0.479N    |P=0.318N     P=0.239N     P=0.683N     P=0.241N     |
|COCH-ARM / FISHERS |     P=0.498N     P=0.497N     P=0.749N     P=0.497N    |P=0.312N     P=0.249N     P=0.689N     P=0.249N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 4

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex                                                                                                                   |
|     Vacuolization Cytoplasmic Diffuse                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    1/100 (1%)   2/100 (2%)   4/100 (4%)  |0/100 (0%)   1/100 (1%)   1/100 (1%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         2.4%         4.8%        |0.0%         1.1%         1.1%         2.3%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          680          568          442         |---          669          737 (T)      676          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.036 *    P=0.494      P=0.238      P=0.060     |P=0.234      P=0.523      P=0.503      P=0.258      |
|POLY 3             |     P=0.037 *    P=0.491      P=0.235      P=0.059     |P=0.228      P=0.510      P=0.505      P=0.238      |
|POLY 1.5           |     P=0.038 *    P=0.495      P=0.237      P=0.061     |P=0.226      P=0.505      P=0.502      P=0.235      |
|POLY 6             |     P=0.036 *    P=0.487      P=0.234      P=0.057     |P=0.234      P=0.515      P=0.508      P=0.246      |
|LOGISTIC REGRESSION|     P=0.046 *    P=0.504      P=0.254      P=0.089     |P=0.233      P=0.483      P=0.503      P=0.240      |
|COCH-ARM / FISHERS |     P=0.040 *    P=0.503      P=0.251      P=0.062     |P=0.232      P=0.500      P=0.500      P=0.249      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex                                                                                                                   |
|     Vacuolization Cytoplasmic Focal                                                                                             |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     20/99 (20%)  24/100 (24%) 23/100 (23%) 25/100 (25%)|29/100 (29%) 30/100 (30%) 26/100 (26%) 34/100 (34%) |
|POLY-3 ADJUSTED (b)|     22.7%        28.6%        27.1%        30.3%       |33.0%        32.5%        29.0%        39.2%        |
|TERMINAL (d)       |     13/57 (23%)  11/46 (24%)  15/47 (32%)  15/48 (31%) |19/59 (32%)  19/68 (28%)  17/60 (28%)  27/61 (44%)  |
|FIRST INCIDENCE    |     303          533          621          662         |613          563          501          545          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.257      P=0.152      P=0.200      P=0.130     |P=0.184      P=0.408N     P=0.334N     P=0.339      |
|POLY 3             |     P=0.247      P=0.239      P=0.309      P=0.169     |P=0.143      P=0.532N     P=0.336N     P=0.241      |
|POLY 1.5           |     P=0.278      P=0.265      P=0.334      P=0.201     |P=0.151      P=0.554      P=0.355N     P=0.233      |
|POLY 6             |     P=0.223      P=0.220      P=0.287      P=0.145     |P=0.145      P=0.481N     P=0.313N     P=0.268      |
|LOGISTIC REGRESSION|     P=0.264      P=0.270      P=0.336      P=0.186     |P=0.161      P=0.562N     P=0.338N     P=0.273      |
|COCH-ARM / FISHERS |     P=0.329      P=0.318      P=0.380      P=0.261     |P=0.205      P=0.500      P=0.376N     P=0.271      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 5

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Medulla                                                                                                                  |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     17/98 (17%)  16/93 (17%)  11/100 (11%) 18/100 (18%)|6/96 (6%)    6/94 (6%)    4/94 (4%)    7/98 (7%)    |
|POLY-3 ADJUSTED (b)|     19.6%        20.8%        13.0%        21.6%       |7.2%         7.1%         4.9%         8.4%         |
|TERMINAL (d)       |     10/57 (18%)  5/43 (12%)   3/47 (6%)    8/48 (17%)  |1/56 (2%)    5/63 (8%)    2/56 (4%)    5/60 (8%)    |
|FIRST INCIDENCE    |     614          624          621          461         |610          631          685          701          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.310      P=0.439      P=0.247N     P=0.354     |P=0.411      P=0.544N     P=0.350N     P=0.547      |
|POLY 3             |     P=0.363      P=0.507      P=0.166N     P=0.452     |P=0.400      P=0.612N     P=0.382N     P=0.502      |
|POLY 1.5           |     P=0.378      P=0.536      P=0.155N     P=0.481     |P=0.399      P=0.614      P=0.385N     P=0.497      |
|POLY 6             |     P=0.351      P=0.482      P=0.177N     P=0.427     |P=0.410      P=0.602N     P=0.377N     P=0.518      |
|LOGISTIC REGRESSION|     P=0.362      P=0.519      P=0.159N     P=0.472     |P=0.406      P=0.600      P=0.386N     P=0.508      |
|COCH-ARM / FISHERS |     P=0.398      P=0.566N     P=0.141N     P=0.526     |P=0.424      P=0.602      P=0.387N     P=0.516      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Medulla                                                                                                                  |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/98 (0%)    1/93 (1%)    0/100 (0%)   2/100 (2%)  |0/96 (0%)    1/94 (1%)    0/94 (0%)    1/98 (1%)    |
|POLY-3 ADJUSTED (b)|     0.0%         1.3%         0.0%         2.4%        |0.0%         1.2%         0.0%         1.2%         |
|TERMINAL (d)       |     0/57 (0%)    0/43 (0%)    0/47 (0%)    1/48 (2%)   |0/56 (0%)    0/63 (0%)    0/56 (0%)    1/60 (2%)    |
|FIRST INCIDENCE    |     ---          544          ---          505         |---          589          ---          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.153      P=0.489      (e)          P=0.214     |P=0.493      P=0.504      (e)          P=0.514      |
|POLY 3             |     P=0.163      P=0.477      (e)          P=0.231     |P=0.505      P=0.505      (e)          P=0.503      |
|POLY 1.5           |     P=0.166      P=0.482      (e)          P=0.235     |P=0.503      P=0.501      (e)          P=0.501      |
|POLY 6             |     P=0.160      P=0.473      (e)          P=0.227     |P=0.512      P=0.511      (e)          P=0.510      |
|LOGISTIC REGRESSION|     P=0.179      P=0.563      (e)          P=0.274     |P=0.534      P=0.437      (e)          P=0.514      |
|COCH-ARM / FISHERS |     P=0.171      P=0.487      (e)          P=0.254     |P=0.507      P=0.495      (e)          P=0.505      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 6

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Bone Marrow                                                                                                                      |
|     Depletion Cellular                                                                                                          |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/100 (3%)   2/100 (2%)   3/100 (3%)   2/99 (2%)   |9/100 (9%)   5/100 (5%)   6/100 (6%)   4/100 (4%)   |
|POLY-3 ADJUSTED (b)|     3.5%         2.4%         3.5%         2.4%        |10.2%        5.5%         6.7%         4.6%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |2/59 (3%)    0/68 (0%)    3/60 (5%)    0/61 (0%)    |
|FIRST INCIDENCE    |     583          267          405          516         |494          582          429          129          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.524N     P=0.537N     P=0.631      P=0.547N    |P=0.230N     P=0.174N     P=0.280N     P=0.132N     |
|POLY 3             |     P=0.517N     P=0.519N     P=0.656      P=0.524N    |P=0.224N     P=0.182N     P=0.286N     P=0.126N     |
|POLY 1.5           |     P=0.512N     P=0.511N     P=0.658      P=0.516N    |P=0.222N     P=0.191N     P=0.291N     P=0.130N     |
|POLY 6             |     P=0.519N     P=0.529N     P=0.654      P=0.532N    |P=0.220N     P=0.170N     P=0.280N     P=0.118N     |
|LOGISTIC REGRESSION|     P=0.528N     P=0.370N     P=0.625N     P=0.455N    |P=0.046N*    P=0.300N     P=0.299N     P=0.045N*    |
|COCH-ARM / FISHERS |     P=0.505N     P=0.500N     P=0.659N     P=0.505N    |P=0.206N     P=0.203N     P=0.296N     P=0.125N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Bone Marrow                                                                                                                      |
|     Hemorrhage                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   0/100 (0%)   2/99 (2%)   |0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         2.5%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    2/48 (4%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          736 (T)     |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.039 *    (e)          (e)          P=0.202     |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.040 *    (e)          (e)          P=0.226     |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.041 *    (e)          (e)          P=0.230     |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.040 *    (e)          (e)          P=0.222     |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          P=0.202     |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.042 *    (e)          (e)          P=0.246     |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 7

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Bone Marrow                                                                                                                      |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     14/100 (14%) 18/100 (18%) 15/100 (15%) 12/99 (12%) |13/100 (13%) 19/100 (19%) 13/100 (13%) 12/100 (12%) |
|POLY-3 ADJUSTED (b)|     16.0%        20.9%        17.0%        14.0%       |14.8%        20.5%        14.5%        13.6%        |
|TERMINAL (d)       |     6/57 (11%)   9/46 (20%)   4/47 (9%)    2/48 (4%)   |7/59 (12%)   9/68 (13%)   5/60 (8%)    6/61 (10%)   |
|FIRST INCIDENCE    |     502          396          477          442         |462          522          508          366          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.276N     P=0.174      P=0.407      P=0.520N    |P=0.268N     P=0.271      P=0.544N     P=0.481N     |
|POLY 3             |     P=0.232N     P=0.258      P=0.507      P=0.443N    |P=0.253N     P=0.205      P=0.562N     P=0.500N     |
|POLY 1.5           |     P=0.228N     P=0.266      P=0.503      P=0.436N    |P=0.257N     P=0.188      P=0.574N     P=0.513N     |
|POLY 6             |     P=0.234N     P=0.248      P=0.517      P=0.448N    |P=0.241N     P=0.233      P=0.543N     P=0.474N     |
|LOGISTIC REGRESSION|     P=0.199N     P=0.315      P=0.532      P=0.356N    |P=0.165N     P=0.127      P=0.570      P=0.443N     |
|COCH-ARM / FISHERS |     P=0.226N     P=0.282      P=0.500      P=0.428N    |P=0.234N     P=0.167      P=0.583N     P=0.500N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Bone Marrow                                                                                                                      |
|     Necrosis                                                                                                                    |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   4/100 (4%)   0/99 (0%)   |0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         4.7%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          ---          568          ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.520N     (e)          P=0.061      (e)         |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.513N     (e)          P=0.062      (e)         |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.508N     (e)          P=0.063      (e)         |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.516N     (e)          P=0.063      (e)         |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.498N     (e)          P=0.071      (e)         |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.502N     (e)          P=0.061      (e)         |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 8

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Bone: Cranium                                                                                                                    |
|     Hyperostosis                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   1/100 (1%)   1/100 (1%)   0/100 (0%)  |7/100 (7%)   1/100 (1%)   5/100 (5%)   5/100 (5%)   |
|POLY-3 ADJUSTED (b)|     1.2%         1.2%         1.2%         0.0%        |8.2%         1.1%         5.7%         5.9%         |
|TERMINAL (d)       |     1/57 (2%)    1/46 (2%)    0/47 (0%)    0/48 (0%)   |6/59 (10%)   1/68 (2%)    5/60 (8%)    5/61 (8%)    |
|FIRST INCIDENCE    |     736 (T)      736 (T)      645          ---         |617          737 (T)      737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.349N     P=0.713      P=0.733      P=0.534N    |P=0.431      P=0.023N*    P=0.366N     P=0.360N     |
|POLY 3             |     P=0.345N     P=0.749      P=0.756      P=0.511N    |P=0.423      P=0.030N*    P=0.370N     P=0.390N     |
|POLY 1.5           |     P=0.342N     P=0.753      P=0.757      P=0.507N    |P=0.426      P=0.032N*    P=0.377N     P=0.397N     |
|POLY 6             |     P=0.348N     P=0.744      P=0.755      P=0.515N    |P=0.427      P=0.027N*    P=0.361N     P=0.372N     |
|LOGISTIC REGRESSION|     P=0.343N     P=0.713      P=0.761      (e)         |P=0.458      P=0.028N*    P=0.350N     P=0.355N     |
|COCH-ARM / FISHERS |     P=0.337N     P=0.751N     P=0.751N     P=0.500N    |P=0.455      P=0.032N*    P=0.384N     P=0.384N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Bone: Femur                                                                                                                      |
|     Hyperostosis                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   2/100 (2%)   5/100 (5%)   2/100 (2%)  |20/100 (20%) 10/100 (10%) 20/100 (20%) 18/100 (18%) |
|POLY-3 ADJUSTED (b)|     1.2%         2.4%         5.9%         2.5%        |23.0%        11.1%        22.6%        21.1%        |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    1/47 (2%)    1/48 (2%)   |13/59 (22%)  8/68 (12%)   15/60 (25%)  14/61 (23%)  |
|FIRST INCIDENCE    |     649          612          645          733         |591          631          617          667          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.598      P=0.472      P=0.100      P=0.454     |P=0.323      P=0.018N*    P=0.529N     P=0.382N     |
|POLY 3             |     P=0.597      P=0.483      P=0.101      P=0.479     |P=0.290      P=0.027N*    P=0.547N     P=0.453N     |
|POLY 1.5           |     P=0.608      P=0.489      P=0.103      P=0.487     |P=0.296      P=0.031N*    P=0.560N     P=0.462N     |
|POLY 6             |     P=0.588      P=0.477      P=0.100      P=0.472     |P=0.299      P=0.023N*    P=0.531N     P=0.427N     |
|LOGISTIC REGRESSION|     P=0.620      P=0.528      P=0.108      P=0.482     |P=0.320      P=0.026N*    P=0.529N     P=0.408N     |
|COCH-ARM / FISHERS |     P=0.622N     P=0.500      P=0.106      P=0.500     |P=0.351      P=0.037N*    P=0.570N     P=0.429N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 9

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Bone: Turbinate                                                                                                                  |
|     Hyperostosis                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   1/100 (1%)   0/100 (0%)   0/100 (0%)  |7/100 (7%)   3/100 (3%)   9/100 (9%)   11/100 (11%) |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         0.0%         0.0%        |8.1%         3.4%         10.3%        12.9%        |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |4/59 (7%)    3/68 (4%)    8/60 (13%)   8/61 (13%)   |
|FIRST INCIDENCE    |     ---          711          ---          ---         |591          737 (T)      647          690          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.605N     P=0.500      (e)          (e)         |P=0.053      P=0.124N     P=0.417      P=0.258      |
|POLY 3             |     P=0.607N     P=0.490      (e)          (e)         |P=0.048 *    P=0.149N     P=0.411      P=0.220      |
|POLY 1.5           |     P=0.603N     P=0.494      (e)          (e)         |P=0.048 *    P=0.156N     P=0.404      P=0.214      |
|POLY 6             |     P=0.610N     P=0.486      (e)          (e)         |P=0.051      P=0.141N     P=0.422      P=0.236      |
|LOGISTIC REGRESSION|     P=0.604N     P=0.488      (e)          (e)         |P=0.054      P=0.144N     P=0.424      P=0.239      |
|COCH-ARM / FISHERS |     P=0.597N     P=0.500      (e)          (e)         |P=0.059      P=0.166N     P=0.398      P=0.230      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Brain: Cerebrum                                                                                                                  |
|     Mineralization                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)  |0/100 (0%)   2/100 (2%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         2.2%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    2/68 (3%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          737 (T)      ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.374N     P=0.271      (e)          (e)          |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.362N     P=0.249      (e)          (e)          |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.366N     P=0.244      (e)          (e)          |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.355N     P=0.255      (e)          (e)          |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |(e)          P=0.271      (e)          (e)          |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.367N     P=0.249      (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 10

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Brain: Hypothalamus                                                                                                              |
|     Compression                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     5/100 (5%)   8/100 (8%)   1/100 (1%)   9/100 (9%)  |16/100 (16%) 9/100 (9%)   16/100 (16%) 15/100 (15%) |
|POLY-3 ADJUSTED (b)|     5.8%         9.7%         1.2%         10.8%       |18.2%        9.9%         17.7%        17.3%        |
|TERMINAL (d)       |     1/57 (2%)    2/46 (4%)    1/47 (2%)    2/48 (4%)   |8/59 (14%)   3/68 (4%)    5/60 (8%)    9/61 (15%)   |
|FIRST INCIDENCE    |     583          613          736 (T)      516         |543          563          556          522          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.144      P=0.215      P=0.130N     P=0.161     |P=0.345      P=0.068N     P=0.533N     P=0.473N     |
|POLY 3             |     P=0.147      P=0.250      P=0.115N     P=0.177     |P=0.314      P=0.082N     P=0.546N     P=0.520N     |
|POLY 1.5           |     P=0.152      P=0.262      P=0.111N     P=0.187     |P=0.318      P=0.089N     P=0.562N     P=0.528N     |
|POLY 6             |     P=0.145      P=0.238      P=0.119N     P=0.170     |P=0.321      P=0.074N     P=0.523N     P=0.497N     |
|LOGISTIC REGRESSION|     P=0.162      P=0.282      P=0.104N     P=0.225     |P=0.388      P=0.119N     P=0.565      P=0.507N     |
|COCH-ARM / FISHERS |     P=0.160      P=0.284      P=0.106N     P=0.203     |P=0.365      P=0.099N     P=0.576N     P=0.500N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Clitoral Gland                                                                                                                   |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |1/90 (1%)    0/96 (0%)    7/97 (7%)    1/96 (1%)    |
|POLY-3 ADJUSTED (b)|                                                        |1.3%         0.0%         8.3%         1.2%         |
|TERMINAL (d)       |                                                        |1/56 (2%)    0/65 (0%)    6/58 (10%)   1/59 (2%)    |
|FIRST INCIDENCE    |                                                        |737 (T)      ---          639          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.539N     P=0.470N     P=0.040 *    P=0.750N     |
|POLY 3             |                                                        |P=0.541N     P=0.479N     P=0.046 *    P=0.748N     |
|POLY 1.5           |                                                        |P=0.542N     P=0.482N     P=0.045 *    P=0.750N     |
|POLY 6             |                                                        |P=0.531N     P=0.474N     P=0.048 *    P=0.742N     |
|LOGISTIC REGRESSION|                                                        |P=0.522N     (e)          P=0.048 *    P=0.750N     |
|COCH-ARM / FISHERS |                                                        |P=0.518N     P=0.484N     P=0.041 *    P=0.735N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 11

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Clitoral Gland                                                                                                                   |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |6/90 (7%)    4/96 (4%)    3/97 (3%)    5/96 (5%)    |
|POLY-3 ADJUSTED (b)|                                                        |7.8%         4.7%         3.5%         6.1%         |
|TERMINAL (d)       |                                                        |5/56 (9%)    3/65 (5%)    1/58 (2%)    5/59 (9%)    |
|FIRST INCIDENCE    |                                                        |673          727          610          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.536      P=0.290N     P=0.226N     P=0.464N     |
|POLY 3             |                                                        |P=0.541      P=0.310N     P=0.201N     P=0.462N     |
|POLY 1.5           |                                                        |P=0.542      P=0.320N     P=0.206N     P=0.470N     |
|POLY 6             |                                                        |P=0.548      P=0.298N     P=0.193N     P=0.446N     |
|LOGISTIC REGRESSION|                                                        |P=0.556      P=0.286N     P=0.205N     P=0.424N     |
|COCH-ARM / FISHERS |                                                        |P=0.565      P=0.334N     P=0.213N     P=0.455N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Clitoral Gland                                                                                                                   |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |25/90 (28%)  20/96 (21%)  19/97 (20%)  30/96 (31%)  |
|POLY-3 ADJUSTED (b)|                                                        |32.1%        23.0%        22.0%        36.1%        |
|TERMINAL (d)       |                                                        |21/56 (38%)  14/65 (22%)  14/58 (24%)  24/59 (41%)  |
|FIRST INCIDENCE    |                                                        |591          522          358          366          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.060      P=0.116N     P=0.159N     P=0.337      |
|POLY 3             |                                                        |P=0.060      P=0.126N     P=0.097N     P=0.355      |
|POLY 1.5           |                                                        |P=0.061      P=0.145N     P=0.109N     P=0.335      |
|POLY 6             |                                                        |P=0.064      P=0.104N     P=0.086N     P=0.399      |
|LOGISTIC REGRESSION|                                                        |P=0.064      P=0.117N     P=0.105N     P=0.379      |
|COCH-ARM / FISHERS |                                                        |P=0.085      P=0.175N     P=0.126N     P=0.361      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 12

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Epididymis                                                                                                                       |
|     Granuloma Sperm                                                                                                             |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   0/100 (0%)   0/100 (0%)   3/100 (3%)  |                                                    |
|POLY-3 ADJUSTED (b)|     2.3%         0.0%         0.0%         3.7%        |                                                    |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    0/47 (0%)    1/48 (2%)   |                                                    |
|FIRST INCIDENCE    |     641          ---          ---          703         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.109      P=0.279N     P=0.268N     P=0.448     |                                                    |
|POLY 3             |     P=0.113      P=0.251N     P=0.245N     P=0.474     |                                                    |
|POLY 1.5           |     P=0.114      P=0.246N     P=0.242N     P=0.484     |                                                    |
|POLY 6             |     P=0.112      P=0.256N     P=0.247N     P=0.465     |                                                    |
|LOGISTIC REGRESSION|     P=0.107      P=0.240N     P=0.239N     P=0.473     |                                                    |
|COCH-ARM / FISHERS |     P=0.115      P=0.249N     P=0.249N     P=0.500     |                                                    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Epididymis                                                                                                                       |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   6/100 (6%)   5/100 (5%)   6/100 (6%)  |                                                    |
|POLY-3 ADJUSTED (b)|     2.3%         7.2%         5.9%         7.3%        |                                                    |
|TERMINAL (d)       |     1/57 (2%)    2/46 (4%)    2/47 (4%)    4/48 (8%)   |                                                    |
|FIRST INCIDENCE    |     617          396          652          461         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.275      P=0.109      P=0.189      P=0.102     |                                                    |
|POLY 3             |     P=0.280      P=0.126      P=0.211      P=0.124     |                                                    |
|POLY 1.5           |     P=0.289      P=0.131      P=0.214      P=0.130     |                                                    |
|POLY 6             |     P=0.272      P=0.121      P=0.208      P=0.119     |                                                    |
|LOGISTIC REGRESSION|     P=0.309      P=0.156      P=0.216      P=0.149     |                                                    |
|COCH-ARM / FISHERS |     P=0.303      P=0.140      P=0.222      P=0.140     |                                                    |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 13

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Epididymis: Epithelium                                                                                                           |
|     Degeneration Mucoid                                                                                                         |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     82/100 (82%) 76/100 (76%) 83/100 (83%) 72/100 (72%)|                                                    |
|POLY-3 ADJUSTED (b)|     87.1%        86.1%        89.9%        80.5%       |                                                    |
|TERMINAL (d)       |     49/57 (86%)  43/46 (94%)  44/47 (94%)  41/48 (85%) |                                                    |
|FIRST INCIDENCE    |     527          589          496          442         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.329N     P=0.258      P=0.133      P=0.538     |                                                    |
|POLY 3             |     P=0.061N     P=0.504N     P=0.347      P=0.132N    |                                                    |
|POLY 1.5           |     P=0.059N     P=0.347N     P=0.416      P=0.091N    |                                                    |
|POLY 6             |     P=0.072N     P=0.504      P=0.282      P=0.203N    |                                                    |
|LOGISTIC REGRESSION|     P=0.169N     P=0.492N     P=0.293      P=0.196N    |                                                    |
|COCH-ARM / FISHERS |     P=0.075N     P=0.193N     P=0.500      P=0.065N    |                                                    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Eye                                                                                                                              |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/0 (0%)     0/3 (0%)     0/2 (0%)     0/7 (0%)    |0/6 (0%)     0/4 (0%)     2/7 (29%)    1/6 (17%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         0.0%         29.2%        19.3%        |
|TERMINAL (d)       |     0/0 (0%)     0/1 (0%)     0/0 (0%)     0/4 (0%)    |0/3 (0%)     0/4 (0%)     1/5 (20%)    1/5 (20%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          ---          652          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.507      (e)          P=0.305      P=0.602      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.472      (e)          P=0.309      P=0.515      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.469      (e)          P=0.285      P=0.504      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.490      (e)          P=0.342      P=0.537      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.473      (e)          P=0.225      P=0.602      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.480      (e)          P=0.269      P=0.500      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 14

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Eye: Iris                                                                                                                        |
|     Synechia                                                                                                                    |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/0 (0%)     0/3 (0%)     0/2 (0%)     1/7 (14%)   |2/6 (33%)    0/4 (0%)     0/7 (0%)     0/6 (0%)     |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         17.0%       |41.7%        0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/0 (0%)     0/1 (0%)     0/0 (0%)     1/4 (25%)   |2/3 (67%)    0/4 (0%)     0/5 (0%)     0/5 (0%)     |
|FIRST INCIDENCE    |     ---          ---          ---          736 (T)     |737 (T)      ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.692      (e)          (e)          P=1.000N    |P=0.299N     P=0.157N     P=0.118N     P=0.118N     |
|POLY 3             |     P=1.000N     (e)          (e)          P=1.000N    |P=0.371N     P=0.246N     P=0.137N     P=0.186N     |
|POLY 1.5           |     P=1.000N     (e)          (e)          P=1.000N    |P=0.350N     P=0.278N     P=0.154N     P=0.203N     |
|POLY 6             |     P=1.000N     (e)          (e)          P=1.000N    |P=0.399N     P=0.203N     P=0.116N     P=0.156N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          P=1.000N    |P=0.299N     (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.516      (e)          (e)          P=1.000     |P=0.330N     P=0.333N     P=0.192N     P=0.227N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Eye: Lens                                                                                                                        |
|     Cataract                                                                                                                    |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/0 (0%)     3/3 (100%)   1/2 (50%)    6/7 (86%)   |6/6 (100%)   4/4 (100%)   5/7 (71%)    4/6 (67%)    |
|POLY-3 ADJUSTED (b)|     0.0%         100.0%       69.3%        96.4%       |100.0%       100.0%       74.7%        77.4%        |
|TERMINAL (d)       |     0/0 (0%)     1/1 (100%)   0/0 (0%)     4/4 (100%)  |3/3 (100%)   4/4 (100%)   4/5 (80%)    4/5 (80%)    |
|FIRST INCIDENCE    |     ---          652          539          668         |543          737 (T)      696          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.356      (e)          P=0.491      P=0.214     |P=0.140N     (e)          P=0.203N     P=0.079N     |
|POLY 3             |     P=1.000      (e)          P=1.000N     P=1.000N    |P=0.321N     (e)          P=0.300N     P=0.397N     |
|POLY 1.5           |     P=1.000      (e)          P=1.000N     P=1.000N    |P=0.265N     (e)          P=0.277N     P=0.317N     |
|POLY 6             |     P=1.000      (e)          P=1.000N     P=1.000N    |P=0.352N     (e)          P=0.345N     P=0.452N     |
|LOGISTIC REGRESSION|     P=0.976N     (e)          (e)          (e)         |P=0.237N     (e)          P=0.225N     P=0.221N     |
|COCH-ARM / FISHERS |     P=0.732      (e)          P=1.000      P=1.000     |P=0.171N     (e)          P=0.269N     P=0.227N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 15

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Eye: Retina                                                                                                                      |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/0 (0%)     3/3 (100%)   2/2 (100%)   7/7 (100%)  |6/6 (100%)   4/4 (100%)   5/7 (71%)    4/6 (67%)    |
|POLY-3 ADJUSTED (b)|     0.0%         100.0%       100.0%       100.0%      |100.0%       100.0%       74.7%        77.4%        |
|TERMINAL (d)       |     0/0 (0%)     1/1 (100%)   0/0 (0%)     4/4 (100%)  |3/3 (100%)   4/4 (100%)   4/5 (80%)    4/5 (80%)    |
|FIRST INCIDENCE    |     ---          652          539          445         |543          737 (T)      696          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.140N     (e)          P=0.203N     P=0.079N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.321N     (e)          P=0.300N     P=0.397N     |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.265N     (e)          P=0.277N     P=0.317N     |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.352N     (e)          P=0.345N     P=0.452N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.237N     (e)          P=0.225N     P=0.221N     |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.171N     (e)          P=0.269N     P=0.227N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Harderian Gland                                                                                                                  |
|     Atrophy Focal                                                                                                               |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   1/100 (1%)   8/100 (8%)   2/100 (2%)  |1/100 (1%)   2/100 (2%)   2/100 (2%)   3/100 (3%)   |
|POLY-3 ADJUSTED (b)|     2.3%         1.2%         9.5%         2.5%        |1.2%         2.2%         2.3%         3.5%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    3/47 (6%)    0/48 (0%)   |1/59 (2%)    1/68 (2%)    2/60 (3%)    3/61 (5%)    |
|FIRST INCIDENCE    |     661          729          649          683         |737 (T)      682          737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.547N     P=0.549N     P=0.041 *    P=0.661     |P=0.290      P=0.545      P=0.506      P=0.318      |
|POLY 3             |     P=0.548N     P=0.519N     P=0.047 *    P=0.672     |P=0.291      P=0.517      P=0.508      P=0.305      |
|POLY 1.5           |     P=0.539N     P=0.512N     P=0.049 *    P=0.680     |P=0.289      P=0.509      P=0.504      P=0.301      |
|POLY 6             |     P=0.553N     P=0.527N     P=0.046 *    P=0.666     |P=0.297      P=0.527      P=0.514      P=0.315      |
|LOGISTIC REGRESSION|     P=0.547N     P=0.519N     P=0.048 *    P=0.679     |P=0.303      P=0.521      P=0.506      P=0.318      |
|COCH-ARM / FISHERS |     P=0.526N     P=0.500N     P=0.050      P=0.689N    |P=0.301      P=0.500      P=0.500      P=0.311      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 16

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Harderian Gland                                                                                                                  |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   2/100 (2%)   4/100 (4%)   0/100 (0%)  |0/100 (0%)   1/100 (1%)   0/100 (0%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     2.3%         2.5%         4.8%         0.0%        |0.0%         1.1%         0.0%         2.4%         |
|TERMINAL (d)       |     2/57 (4%)    1/46 (2%)    3/47 (6%)    0/48 (0%)   |0/59 (0%)    1/68 (2%)    0/60 (0%)    2/61 (3%)    |
|FIRST INCIDENCE    |     736 (T)      720          726          ---         |---          737 (T)      ---          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.161N     P=0.624      P=0.266      P=0.277N    |P=0.156      P=0.528      (e)          P=0.246      |
|POLY 3             |     P=0.159N     P=0.674      P=0.328      P=0.251N    |P=0.159      P=0.509      (e)          P=0.237      |
|POLY 1.5           |     P=0.155N     P=0.681      P=0.332      P=0.246N    |P=0.158      P=0.505      (e)          P=0.235      |
|POLY 6             |     P=0.162N     P=0.668      P=0.325      P=0.255N    |P=0.163      P=0.514      (e)          P=0.243      |
|LOGISTIC REGRESSION|     P=0.155N     P=0.660      P=0.313      (e)         |(e)          P=0.528      (e)          P=0.246      |
|COCH-ARM / FISHERS |     P=0.149N     P=0.689N     P=0.341      P=0.249N    |P=0.162      P=0.500      (e)          P=0.249      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Harderian Gland                                                                                                                  |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     43/100 (43%) 49/100 (49%) 44/100 (44%) 46/100 (46%)|69/100 (69%) 73/100 (73%) 65/100 (65%) 56/100 (56%) |
|POLY-3 ADJUSTED (b)|     48.0%        56.2%        51.5%        53.3%       |72.5%        75.2%        68.5%        60.6%        |
|TERMINAL (d)       |     29/57 (51%)  29/46 (63%)  33/47 (70%)  32/48 (67%) |38/59 (64%)  48/68 (71%)  42/60 (70%)  35/61 (57%)  |
|FIRST INCIDENCE    |     573          267          635          442         |494          498          358          394          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.369      P=0.052      P=0.180      P=0.127     |P=0.051N     P=0.363N     P=0.291N     P=0.062N     |
|POLY 3             |     P=0.450      P=0.163      P=0.370      P=0.281     |P=0.015N*    P=0.392      P=0.324N     P=0.053N     |
|POLY 1.5           |     P=0.482      P=0.195      P=0.425      P=0.327     |P=0.015N*    P=0.362      P=0.322N     P=0.055N     |
|POLY 6             |     P=0.412      P=0.129      P=0.310      P=0.231     |P=0.014N*    P=0.426      P=0.341N     P=0.050N     |
|LOGISTIC REGRESSION|     P=0.417      P=0.158      P=0.414      P=0.268     |P=0.011N*    P=0.337      P=0.318N     P=0.047N*    |
|COCH-ARM / FISHERS |     P=0.519      P=0.239      P=0.500      P=0.388     |P=0.008N**   P=0.320      P=0.326N     P=0.040N*    |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 17

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Harderian Gland                                                                                                                  |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     10/100 (10%) 12/100 (12%) 11/100 (11%) 5/100 (5%)  |10/100 (10%) 9/100 (9%)   16/100 (16%) 15/100 (15%) |
|POLY-3 ADJUSTED (b)|     11.4%        14.5%        13.0%        6.1%        |11.6%        10.0%        18.2%        17.4%        |
|TERMINAL (d)       |     4/57 (7%)    8/46 (17%)   6/47 (13%)   2/48 (4%)   |7/59 (12%)   8/68 (12%)   13/60 (22%)  12/61 (20%)  |
|FIRST INCIDENCE    |     527          490          535          592         |591          582          617          366          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.079N     P=0.282      P=0.401      P=0.207N    |P=0.131      P=0.388N     P=0.163      P=0.219      |
|POLY 3             |     P=0.070N     P=0.357      P=0.463      P=0.172N    |P=0.133      P=0.465N     P=0.153      P=0.192      |
|POLY 1.5           |     P=0.065N     P=0.377      P=0.478      P=0.159N    |P=0.131      P=0.480N     P=0.149      P=0.184      |
|POLY 6             |     P=0.075N     P=0.335      P=0.446      P=0.184N    |P=0.142      P=0.446N     P=0.158      P=0.209      |
|LOGISTIC REGRESSION|     P=0.062N     P=0.401      P=0.488      P=0.138N    |P=0.132      P=0.463N     P=0.168      P=0.188      |
|COCH-ARM / FISHERS |     P=0.058N     P=0.411      P=0.500      P=0.141N    |P=0.153      P=0.500N     P=0.147      P=0.196      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Heart                                                                                                                            |
|     Cardiomyopathy                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     88/100 (88%) 87/100 (87%) 88/100 (88%) 87/100 (87%)|53/100 (53%) 71/100 (71%) 64/100 (64%) 61/100 (61%) |
|POLY-3 ADJUSTED (b)|     92.0%        92.9%        93.7%        92.0%       |59.8%        75.8%        70.5%        67.8%        |
|TERMINAL (d)       |     55/57 (97%)  46/46 (100%) 46/47 (98%)  48/48 (100%)|39/59 (66%)  55/68 (81%)  43/60 (72%)  42/61 (69%)  |
|FIRST INCIDENCE    |     476          329          393          410         |591          508          639          366          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.334      P=0.091      P=0.131      P=0.137     |P=0.530      P=0.109      P=0.143      P=0.262      |
|POLY 3             |     P=0.507N     P=0.523      P=0.425      P=0.616     |P=0.493N     P=0.011 *    P=0.078      P=0.160      |
|POLY 1.5           |     P=0.478N     P=0.585      P=0.507      P=0.551N    |P=0.533N     P=0.008 **   P=0.072      P=0.131      |
|POLY 6             |     P=0.594N     P=0.457      P=0.337      P=0.538     |P=0.389N     P=0.017 *    P=0.100      P=0.241      |
|LOGISTIC REGRESSION|     P=0.445      P=0.424      P=0.409      P=0.454     |P=0.507      P=0.017 *    P=0.117      P=0.131      |
|COCH-ARM / FISHERS |     P=0.500N     P=0.500N     P=0.586N     P=0.500N    |P=0.452N     P=0.007 **   P=0.076      P=0.159      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 18

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Heart: Atrium                                                                                                                    |
|     Thrombosis                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     6/100 (6%)   6/100 (6%)   6/100 (6%)   9/100 (9%)  |1/100 (1%)   0/100 (0%)   2/100 (2%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     6.9%         7.3%         7.1%         10.8%       |1.2%         0.0%         2.3%         0.0%         |
|TERMINAL (d)       |     2/57 (4%)    1/46 (2%)    0/47 (0%)    3/48 (6%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     658          581          496          481         |729          ---          694          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.186      P=0.536      P=0.576      P=0.238     |P=0.437N     P=0.475N     P=0.517      P=0.484N     |
|POLY 3             |     P=0.195      P=0.585      P=0.604      P=0.269     |P=0.457N     P=0.491N     P=0.509      P=0.501N     |
|POLY 1.5           |     P=0.200      P=0.597      P=0.609      P=0.280     |P=0.456N     P=0.495N     P=0.504      P=0.504N     |
|POLY 6             |     P=0.192      P=0.574      P=0.601      P=0.261     |P=0.454N     P=0.486N     P=0.515      P=0.496N     |
|LOGISTIC REGRESSION|     P=0.218      P=0.616N     P=0.609N     P=0.326     |P=0.450N     P=0.481N     P=0.510      P=0.490N     |
|COCH-ARM / FISHERS |     P=0.206      P=0.616N     P=0.616N     P=0.296     |P=0.443N     P=0.500N     P=0.500      P=0.500N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Heart: Valve                                                                                                                     |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   1/100 (1%)   0/100 (0%)   2/100 (2%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         0.0%         2.5%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    1/46 (2%)    0/47 (0%)    1/48 (2%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          736 (T)      ---          668         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.152      P=0.457      (e)          P=0.214     |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.155      P=0.490      (e)          P=0.227     |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.157      P=0.493      (e)          P=0.231     |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.152      P=0.486      (e)          P=0.223     |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.154      P=0.457      (e)          P=0.228     |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.162      P=0.500      (e)          P=0.249     |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 19

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Intestine Small, Ileum: Peyer's Patch                                                                                            |
|     Hyperplasia Lymphoid                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/94 (0%)    0/92 (0%)    0/97 (0%)    2/96 (2%)   |0/94 (0%)    0/91 (0%)    0/93 (0%)    2/97 (2%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         2.5%        |0.0%         0.0%         0.0%         2.4%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    1/48 (2%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    2/61 (3%)    |
|FIRST INCIDENCE    |     ---          ---          ---          488         |---          ---          ---          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.040 *    (e)          (e)          P=0.216     |P=0.041 *    (e)          (e)          P=0.246      |
|POLY 3             |     P=0.042 *    (e)          (e)          P=0.228     |P=0.045 *    (e)          (e)          P=0.244      |
|POLY 1.5           |     P=0.043 *    (e)          (e)          P=0.233     |P=0.045 *    (e)          (e)          P=0.242      |
|POLY 6             |     P=0.041 *    (e)          (e)          P=0.223     |P=0.045 *    (e)          (e)          P=0.249      |
|LOGISTIC REGRESSION|     P=0.053      (e)          (e)          P=0.315     |(e)          (e)          (e)          P=0.246      |
|COCH-ARM / FISHERS |     P=0.045 *    (e)          (e)          P=0.254     |P=0.047 *    (e)          (e)          P=0.257      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Islets, Pancreatic                                                                                                               |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    1/99 (1%)    9/99 (9%)    2/99 (2%)   |0/100 (0%)   1/100 (1%)   0/99 (0%)    0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     1.2%         1.2%         10.7%        2.5%        |0.0%         1.1%         0.0%         0.0%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    4/47 (9%)    1/48 (2%)   |0/59 (0%)    1/68 (2%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     736 (T)      734          635          551         |---          737 (T)      ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.605N     P=0.714      P=0.007 **   P=0.451     |P=0.603N     P=0.528      (e)          (e)          |
|POLY 3             |     P=0.601N     P=0.748      P=0.010 *    P=0.482     |P=0.593N     P=0.509      (e)          (e)          |
|POLY 1.5           |     P=0.593N     P=0.753      P=0.010 *    P=0.489     |P=0.595N     P=0.505      (e)          (e)          |
|POLY 6             |     P=0.606N     P=0.743      P=0.009 **   P=0.476     |P=0.589N     P=0.514      (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.603N     P=0.733      P=0.010 *    P=0.508     |(e)          P=0.528      (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.580N     P=0.751N     P=0.009 **   P=0.500     |P=0.597N     P=0.500      (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 20

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney                                                                                                                           |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   3/100 (3%)   1/100 (1%)   2/100 (2%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     1.2%         3.7%         1.2%         2.4%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     1/57 (2%)    2/46 (4%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     736 (T)      713          724          445         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.593      P=0.249      P=0.741      P=0.472     |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.595      P=0.289      P=0.755      P=0.485     |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.600      P=0.295      P=0.757      P=0.490     |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.591      P=0.282      P=0.754      P=0.480     |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.608      P=0.274      P=0.755      P=0.543     |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.608      P=0.311      P=0.751N     P=0.500     |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney                                                                                                                           |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)  |3/100 (3%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |3.5%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |2/59 (3%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |736          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.247N     P=0.100N     P=0.121N     P=0.118N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.252N     P=0.113N     P=0.117N     P=0.122N     |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.248N     P=0.117N     P=0.119N     P=0.125N     |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.255N     P=0.109N     P=0.114N     P=0.117N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.239N     P=0.100N     P=0.117N     P=0.110N     |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.240N     P=0.123N     P=0.123N     P=0.123N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 21

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney                                                                                                                           |
|     Mineralization                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     39/100 (39%) 28/100 (28%) 33/100 (33%) 31/100 (31%)|23/100 (23%) 24/100 (24%) 29/100 (29%) 17/100 (17%) |
|POLY-3 ADJUSTED (b)|     43.5%        32.9%        38.5%        37.0%       |26.4%        26.6%        32.5%        19.8%        |
|TERMINAL (d)       |     23/57 (40%)  11/46 (24%)  16/47 (34%)  20/48 (42%) |16/59 (27%)  19/68 (28%)  20/60 (33%)  15/61 (25%)  |
|FIRST INCIDENCE    |     406          593          496          461         |617          641          501          557          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.477N     P=0.253N     P=0.454N     P=0.368N    |P=0.110N     P=0.431N     P=0.256      P=0.157N     |
|POLY 3             |     P=0.444N     P=0.095N     P=0.297N     P=0.231N    |P=0.111N     P=0.555      P=0.232      P=0.198N     |
|POLY 1.5           |     P=0.409N     P=0.085N     P=0.268N     P=0.195N    |P=0.112N     P=0.532      P=0.220      P=0.207N     |
|POLY 6             |     P=0.483N     P=0.105N     P=0.331N     P=0.271N    |P=0.101N     P=0.555N     P=0.249      P=0.179N     |
|LOGISTIC REGRESSION|     P=0.441N     P=0.098N     P=0.273N     P=0.225N    |P=0.099N     P=0.530N     P=0.245      P=0.178N     |
|COCH-ARM / FISHERS |     P=0.367N     P=0.067N     P=0.231N     P=0.150N    |P=0.089N     P=0.500      P=0.210      P=0.188N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney                                                                                                                           |
|     Nephropathy                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     92/100 (92%) 85/100 (85%) 89/100 (89%) 86/100 (86%)|54/100 (54%) 46/100 (46%) 69/100 (69%) 46/100 (46%) |
|POLY-3 ADJUSTED (b)|     94.9%        91.1%        93.9%        93.0%       |58.4%        50.8%        73.6%        52.5%        |
|TERMINAL (d)       |     57/57 (100%) 45/46 (98%)  46/47 (98%)  48/48 (100%)|34/59 (58%)  40/68 (59%)  45/60 (75%)  35/61 (57%)  |
|FIRST INCIDENCE    |     303          466          463          442         |462          589          429          533          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.440      P=0.253      P=0.212      P=0.296     |P=0.223N     P=0.040N*    P=0.073      P=0.135N     |
|POLY 3             |     P=0.567N     P=0.198N     P=0.507N     P=0.387N    |P=0.247N     P=0.180N     P=0.017 *    P=0.253N     |
|POLY 1.5           |     P=0.426N     P=0.158N     P=0.423N     P=0.249N    |P=0.236N     P=0.170N     P=0.017 *    P=0.238N     |
|POLY 6             |     P=0.485      P=0.227N     P=0.619N     P=0.584N    |P=0.226N     P=0.200N     P=0.020 *    P=0.249N     |
|LOGISTIC REGRESSION|     P=0.476N     P=0.192N     P=0.418N     P=0.318N    |P=0.212N     P=0.097N     P=0.024 *    P=0.182N     |
|COCH-ARM / FISHERS |     P=0.300N     P=0.091N     P=0.315N     P=0.129N    |P=0.147N     P=0.161N     P=0.021 *    P=0.161N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 22

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney                                                                                                                           |
|     Pigmentation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   2/100 (2%)   1/100 (1%)  |0/100 (0%)   0/100 (0%)   2/100 (2%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         2.4%         1.2%        |0.0%         0.0%         2.3%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    2/47 (4%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          ---          736 (T)      565         |---          ---          557          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.428      (e)          P=0.197      P=0.480     |P=0.639N     (e)          P=0.246      (e)          |
|POLY 3             |     P=0.434      (e)          P=0.233      P=0.490     |P=0.643N     (e)          P=0.245      (e)          |
|POLY 1.5           |     P=0.439      (e)          P=0.235      P=0.494     |P=0.644N     (e)          P=0.242      (e)          |
|POLY 6             |     P=0.432      (e)          P=0.231      P=0.487     |P=0.639N     (e)          P=0.250      (e)          |
|LOGISTIC REGRESSION|     P=0.446      (e)          P=0.197      P=0.531     |P=0.584N     (e)          P=0.239      (e)          |
|COCH-ARM / FISHERS |     P=0.445      (e)          P=0.249      P=0.500     |P=0.634N     (e)          P=0.249      (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Papilla                                                                                                                  |
|     Necrosis                                                                                                                    |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   2/100 (2%)   0/100 (0%)   0/100 (0%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         2.4%         0.0%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          267          ---          ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.367N     P=0.240      (e)          (e)         |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.377N     P=0.232      (e)          (e)         |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.373N     P=0.235      (e)          (e)         |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.382N     P=0.228      (e)          (e)         |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.998N     P=0.333      (e)          (e)         |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.367N     P=0.249      (e)          (e)         |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 23

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Pelvis                                                                                                                   |
|     Inflammation Acute                                                                                                          |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)  |2/100 (2%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |2.3%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |543          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.372N     P=0.230N     P=0.236N     P=0.243N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.375N     P=0.231N     P=0.236N     P=0.242N     |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.372N     P=0.234N     P=0.237N     P=0.244N     |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.377N     P=0.226N     P=0.233N     P=0.237N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.253N     P=0.302N     P=0.213N     P=0.177N     |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.365N     P=0.249N     P=0.249N     P=0.249N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Pelvis                                                                                                                   |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   1/100 (1%)   0/100 (0%)   0/100 (0%)  |2/100 (2%)   5/100 (5%)   1/100 (1%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     2.3%         1.2%         0.0%         0.0%        |2.3%         5.5%         1.1%         1.2%         |
|TERMINAL (d)       |     1/57 (2%)    1/46 (2%)    0/47 (0%)    0/48 (0%)   |2/59 (3%)    3/68 (4%)    0/60 (0%)    1/61 (2%)    |
|FIRST INCIDENCE    |     579          736 (T)      ---          ---         |737 (T)      589          703          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.255N     P=0.557N     P=0.269N     P=0.273N    |P=0.197N     P=0.266      P=0.491N     P=0.488N     |
|POLY 3             |     P=0.242N     P=0.520N     P=0.245N     P=0.252N    |P=0.189N     P=0.244      P=0.491N     P=0.502N     |
|POLY 1.5           |     P=0.242N     P=0.513N     P=0.243N     P=0.247N    |P=0.191N     P=0.234      P=0.496N     P=0.506N     |
|POLY 6             |     P=0.242N     P=0.528N     P=0.248N     P=0.258N    |P=0.182N     P=0.258      P=0.485N     P=0.492N     |
|LOGISTIC REGRESSION|     P=0.241N     P=0.500N     P=0.231N     P=0.225N    |P=0.189N     P=0.215      P=0.484N     P=0.488N     |
|COCH-ARM / FISHERS |     P=0.241N     P=0.500N     P=0.249N     P=0.249N    |P=0.185N     P=0.222      P=0.500N     P=0.500N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 24

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Pelvis, Transitional Epithelium                                                                                          |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   1/100 (1%)   0/100 (0%)   0/100 (0%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     2.3%         1.2%         0.0%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)    |
|FIRST INCIDENCE    |     605          616          ---          ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.255N     P=0.548N     P=0.269N     P=0.272N    |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.243N     P=0.518N     P=0.245N     P=0.252N    |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.242N     P=0.512N     P=0.243N     P=0.247N    |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.243N     P=0.525N     P=0.247N     P=0.257N    |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.236N     P=0.476N     P=0.234N     P=0.231N    |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.241N     P=0.500N     P=0.249N     P=0.249N    |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Renal Tubule                                                                                                             |
|     Accumulation, Hyaline Droplet                                                                                               |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)  |5/100 (5%)   2/100 (2%)   3/100 (3%)   3/100 (3%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |5.8%         2.2%         3.4%         3.5%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |4/59 (7%)    2/68 (3%)    2/60 (3%)    2/61 (3%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |691          737 (T)      643          701          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.537N     P=0.170N     P=0.342N     P=0.334N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.549N     P=0.203N     P=0.346N     P=0.362N     |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.547N     P=0.211N     P=0.353N     P=0.369N     |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.544N     P=0.194N     P=0.336N     P=0.347N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.534N     P=0.182N     P=0.339N     P=0.337N     |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.527N     P=0.222N     P=0.360N     P=0.360N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 25

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Renal Tubule                                                                                                             |
|     Degeneration                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   2/100 (2%)   2/100 (2%)   1/100 (1%)  |2/100 (2%)   2/100 (2%)   1/100 (1%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     2.3%         2.4%         2.4%         1.2%        |2.3%         2.2%         1.1%         2.3%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    1/61 (2%)    |
|FIRST INCIDENCE    |     659          267          621          703         |553          669          619          409          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.400N     P=0.665      P=0.655      P=0.531N    |P=0.593      P=0.665N     P=0.488N     P=0.680      |
|POLY 3             |     P=0.408N     P=0.681      P=0.684      P=0.520N    |P=0.597      P=0.679N     P=0.495N     P=0.690      |
|POLY 1.5           |     P=0.402N     P=0.686      P=0.687      P=0.512N    |P=0.597      P=0.685N     P=0.498N     P=0.686      |
|POLY 6             |     P=0.413N     P=0.675      P=0.683      P=0.527N    |P=0.602      P=0.671N     P=0.491N     P=0.688N     |
|LOGISTIC REGRESSION|     P=0.374N     P=0.554N     P=0.693N     P=0.513N    |P=0.481N     P=0.604      P=0.451N     P=0.571N     |
|COCH-ARM / FISHERS |     P=0.391N     P=0.689N     P=0.689N     P=0.500N    |P=0.609      P=0.689N     P=0.500N     P=0.689N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Renal Tubule                                                                                                             |
|     Pigmentation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     29/100 (29%) 20/100 (20%) 26/100 (26%) 23/100 (23%)|26/100 (26%) 11/100 (11%) 13/100 (13%) 30/100 (30%) |
|POLY-3 ADJUSTED (b)|     32.0%        23.1%        29.4%        26.1%       |28.8%        12.1%        14.6%        34.3%        |
|TERMINAL (d)       |     9/57 (16%)   3/46 (7%)    3/47 (6%)    5/48 (10%)  |13/59 (22%)  7/68 (10%)   7/60 (12%)   20/61 (33%)  |
|FIRST INCIDENCE    |     573          466          520          442         |462          498          488          409          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.492N     P=0.229N     P=0.487N     P=0.370N    |P=0.007 **   P=0.003N**   P=0.018N*    P=0.375      |
|POLY 3             |     P=0.413N     P=0.123N     P=0.418N     P=0.242N    |P=0.003 **   P=0.004N**   P=0.015N*    P=0.264      |
|POLY 1.5           |     P=0.407N     P=0.111N     P=0.401N     P=0.226N    |P=0.004 **   P=0.004N**   P=0.015N*    P=0.267      |
|POLY 6             |     P=0.423N     P=0.140N     P=0.432N     P=0.263N    |P=0.003 **   P=0.004N**   P=0.015N*    P=0.276      |
|LOGISTIC REGRESSION|     P=0.381N     P=0.081N     P=0.370N     P=0.156N    |P=0.006 **   P=0.008N**   P=0.017N*    P=0.306      |
|COCH-ARM / FISHERS |     P=0.410N     P=0.094N     P=0.376N     P=0.210N    |P=0.007 **   P=0.005N**   P=0.016N*    P=0.318      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 26

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Angiectasis Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   1/100 (1%)   3/100 (3%)   0/100 (0%)  |1/100 (1%)   1/100 (1%)   2/100 (2%)   3/100 (3%)   |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         3.6%         0.0%        |1.2%         1.1%         2.3%         3.5%         |
|TERMINAL (d)       |     0/57 (0%)    1/46 (2%)    2/47 (4%)    0/48 (0%)   |0/59 (0%)    1/68 (2%)    2/60 (3%)    2/61 (3%)    |
|FIRST INCIDENCE    |     ---          736 (T)      701          ---         |561          737 (T)      737 (T)      155          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.420N     P=0.457      P=0.101      (e)         |P=0.191      P=0.740N     P=0.504      P=0.307      |
|POLY 3             |     P=0.420N     P=0.490      P=0.117      (e)         |P=0.196      P=0.752N     P=0.506      P=0.307      |
|POLY 1.5           |     P=0.414N     P=0.493      P=0.119      (e)         |P=0.195      P=0.756N     P=0.503      P=0.303      |
|POLY 6             |     P=0.426N     P=0.486      P=0.116      (e)         |P=0.200      P=0.747N     P=0.510      P=0.316      |
|LOGISTIC REGRESSION|     P=0.415N     P=0.457      P=0.116      (e)         |P=0.306      P=0.731      P=0.497      P=0.457      |
|COCH-ARM / FISHERS |     P=0.404N     P=0.500      P=0.123      (e)         |P=0.203      P=0.751N     P=0.500      P=0.311      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Basophilic Focus                                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     35/100 (35%) 35/100 (35%) 47/100 (47%) 37/100 (37%)|66/100 (66%) 82/100 (82%) 77/100 (77%) 66/100 (66%) |
|POLY-3 ADJUSTED (b)|     40.3%        40.7%        54.4%        44.3%       |71.7%        85.0%        82.8%        72.1%        |
|TERMINAL (d)       |     31/57 (54%)  24/46 (52%)  39/47 (83%)  30/48 (63%) |46/59 (78%)  60/68 (88%)  57/60 (95%)  47/61 (77%)  |
|FIRST INCIDENCE    |     583          267          477          516         |533          508          429          366          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.365      P=0.197      P<0.001 **   P=0.139     |P=0.171N     P=0.217      P=0.134      P=0.455N     |
|POLY 3             |     P=0.417      P=0.540      P=0.038 *    P=0.348     |P=0.087N     P=0.014 *    P=0.040 *    P=0.544      |
|POLY 1.5           |     P=0.457      P=0.547      P=0.045 *    P=0.384     |P=0.099N     P=0.010 *    P=0.044 *    P=0.508      |
|POLY 6             |     P=0.387      P=0.540      P=0.031 *    P=0.323     |P=0.065N     P=0.021 *    P=0.038 *    P=0.532N     |
|LOGISTIC REGRESSION|     P=0.416      P=0.446      P=0.028 *    P=0.272     |P=0.144N     P=0.016 *    P=0.074      P=0.481      |
|COCH-ARM / FISHERS |     P=0.521      P=0.559N     P=0.057      P=0.441     |P=0.068N     P=0.008 **   P=0.058      P=0.559N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 27

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Clear Cell Focus                                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     44/100 (44%) 37/100 (37%) 38/100 (38%) 35/100 (35%)|6/100 (6%)   13/100 (13%) 18/100 (18%) 13/100 (13%) |
|POLY-3 ADJUSTED (b)|     51.0%        44.4%        44.9%        42.9%       |7.0%         14.5%        20.3%        15.2%        |
|TERMINAL (d)       |     41/57 (72%)  32/46 (70%)  35/47 (75%)  33/48 (69%) |6/59 (10%)   12/68 (18%)  15/60 (25%)  11/61 (18%)  |
|FIRST INCIDENCE    |     647          534          477          614         |737 (T)      669          429          485          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.287N     P=0.493      P=0.473      P=0.386N    |P=0.290      P=0.125      P=0.009 **   P=0.081      |
|POLY 3             |     P=0.273N     P=0.234N     P=0.253N     P=0.178N    |P=0.307      P=0.088      P=0.009 **   P=0.072      |
|POLY 1.5           |     P=0.245N     P=0.221N     P=0.246N     P=0.154N    |P=0.299      P=0.081      P=0.008 **   P=0.068      |
|POLY 6             |     P=0.300N     P=0.241N     P=0.254N     P=0.200N    |P=0.333      P=0.098      P=0.011 *    P=0.083      |
|LOGISTIC REGRESSION|     P=0.263N     P=0.331N     P=0.246N     P=0.179N    |P=0.304      P=0.111      P=0.010 *    P=0.077      |
|COCH-ARM / FISHERS |     P=0.212N     P=0.194N     P=0.236N     P=0.124N    |P=0.330      P=0.073      P=0.008 **   P=0.073      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Degeneration Cystic Focal                                                                                                   |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     8/100 (8%)   2/100 (2%)   11/100 (11%) 13/100 (13%)|0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     9.2%         2.5%         13.1%        15.9%       |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     5/57 (9%)    1/46 (2%)    8/47 (17%)   10/48 (21%) |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     579          733          715          647         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.016 *    P=0.089N     P=0.209      P=0.103     |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.018 *    P=0.062N     P=0.286      P=0.141     |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.020 *    P=0.058N     P=0.298      P=0.155     |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.018 *    P=0.067N     P=0.275      P=0.131     |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.016 *    P=0.063N     P=0.288      P=0.137     |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.023 *    P=0.050N     P=0.315      P=0.178     |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 28

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Eosinophilic Focus                                                                                                          |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     21/100 (21%) 19/100 (19%) 26/100 (26%) 17/100 (17%)|18/100 (18%) 24/100 (24%) 30/100 (30%) 24/100 (24%) |
|POLY-3 ADJUSTED (b)|     24.3%        23.2%        30.8%        20.9%       |20.6%        26.5%        34.0%        27.7%        |
|TERMINAL (d)       |     17/57 (30%)  15/46 (33%)  21/47 (45%)  14/48 (29%) |11/59 (19%)  19/68 (28%)  26/60 (43%)  18/61 (30%)  |
|FIRST INCIDENCE    |     674          624          606          673         |547          590          639          549          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.316N     P=0.443      P=0.087      P=0.489N    |P=0.364      P=0.344      P=0.042 *    P=0.234      |
|POLY 3             |     P=0.285N     P=0.504N     P=0.213      P=0.362N    |P=0.356      P=0.225      P=0.031 *    P=0.176      |
|POLY 1.5           |     P=0.268N     P=0.476N     P=0.228      P=0.335N    |P=0.352      P=0.211      P=0.032 *    P=0.169      |
|POLY 6             |     P=0.298N     P=0.535N     P=0.199      P=0.388N    |P=0.385      P=0.246      P=0.031 *    P=0.199      |
|LOGISTIC REGRESSION|     P=0.287N     P=0.551N     P=0.206      P=0.386N    |P=0.369      P=0.237      P=0.044 *    P=0.185      |
|COCH-ARM / FISHERS |     P=0.245N     P=0.430N     P=0.252      P=0.295N    |P=0.410      P=0.193      P=0.034 *    P=0.193      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Hematopoietic Cell Proliferation                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     5/100 (5%)   4/100 (4%)   6/100 (6%)   3/100 (3%)  |6/100 (6%)   3/100 (3%)   2/100 (2%)   4/100 (4%)   |
|POLY-3 ADJUSTED (b)|     5.8%         4.8%         7.0%         3.6%        |6.9%         3.4%         2.3%         4.6%         |
|TERMINAL (d)       |     2/57 (4%)    0/46 (0%)    1/47 (2%)    0/48 (0%)   |1/59 (2%)    3/68 (4%)    1/60 (2%)    1/61 (2%)    |
|FIRST INCIDENCE    |     649          396          477          565         |462          737 (T)      652          366          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.348N     P=0.565N     P=0.458      P=0.418N    |P=0.589N     P=0.211N     P=0.133N     P=0.370N     |
|POLY 3             |     P=0.342N     P=0.521N     P=0.496      P=0.387N    |P=0.588N     P=0.236N     P=0.137N     P=0.377N     |
|POLY 1.5           |     P=0.334N     P=0.513N     P=0.497      P=0.376N    |P=0.589N     P=0.241N     P=0.139N     P=0.383N     |
|POLY 6             |     P=0.348N     P=0.529N     P=0.496      P=0.395N    |P=0.581N     P=0.230N     P=0.135N     P=0.364N     |
|LOGISTIC REGRESSION|     P=0.287N     P=0.423N     P=0.531      P=0.336N    |P=0.417N     P=0.292N     P=0.138N     P=0.233N     |
|COCH-ARM / FISHERS |     P=0.320N     P=0.500N     P=0.500      P=0.360N    |P=0.576N     P=0.249N     P=0.140N     P=0.374N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 29

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Hepatodiaphragmatic Nodule                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   5/100 (5%)   7/100 (7%)   0/100 (0%)  |8/100 (8%)   4/100 (4%)   4/100 (4%)   5/100 (5%)   |
|POLY-3 ADJUSTED (b)|     2.3%         6.1%         8.3%         0.0%        |9.3%         4.5%         4.6%         5.9%         |
|TERMINAL (d)       |     2/57 (4%)    2/46 (4%)    5/47 (11%)   0/48 (0%)   |5/59 (9%)    4/68 (6%)    1/60 (2%)    4/61 (7%)    |
|FIRST INCIDENCE    |     736 (T)      596          393          ---         |602          737 (T)      637          717          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.066N     P=0.167      P=0.055      P=0.277N    |P=0.493N     P=0.133N     P=0.172N     P=0.262N     |
|POLY 3             |     P=0.064N     P=0.203      P=0.081      P=0.251N    |P=0.506N     P=0.167N     P=0.175N     P=0.291N     |
|POLY 1.5           |     P=0.061N     P=0.209      P=0.083      P=0.246N    |P=0.504N     P=0.175N     P=0.180N     P=0.297N     |
|POLY 6             |     P=0.067N     P=0.198      P=0.081      P=0.255N    |P=0.501N     P=0.158N     P=0.167N     P=0.275N     |
|LOGISTIC REGRESSION|     P=0.058N     P=0.204      P=0.086      (e)         |P=0.494N     P=0.156N     P=0.178N     P=0.274N     |
|COCH-ARM / FISHERS |     P=0.057N     P=0.222      P=0.085      P=0.249N    |P=0.478N     P=0.186N     P=0.186N     P=0.284N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Infiltration Cellular Histiocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         0.0%         0.0%         2.3%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          ---          ---          683          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.045 *    (e)          (e)          P=0.256      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.041 *    (e)          (e)          P=0.238      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.041 *    (e)          (e)          P=0.235      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.042 *    (e)          (e)          P=0.245      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.041 *    (e)          (e)          P=0.236      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.043 *    (e)          (e)          P=0.249      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 30

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   0/100 (0%)   0/100 (0%)   0/100 (0%)  |1/100 (1%)   1/100 (1%)   4/100 (4%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     1.2%         0.0%         0.0%         0.0%        |1.2%         1.1%         4.6%         0.0%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |1/59 (2%)    0/68 (0%)    3/60 (5%)    0/61 (0%)    |
|FIRST INCIDENCE    |     736 (T)      ---          ---          ---         |737 (T)      582          686          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.606N     P=0.543N     P=0.538N     P=0.534N    |P=0.285N     P=0.739N     P=0.191      P=0.493N     |
|POLY 3             |     P=0.590N     P=0.510N     P=0.505N     P=0.511N    |P=0.288N     P=0.749N     P=0.190      P=0.501N     |
|POLY 1.5           |     P=0.592N     P=0.507N     P=0.503N     P=0.507N    |P=0.288N     P=0.754N     P=0.186      P=0.504N     |
|POLY 6             |     P=0.588N     P=0.514N     P=0.506N     P=0.515N    |P=0.282N     P=0.742N     P=0.195      P=0.495N     |
|LOGISTIC REGRESSION|     P=0.606N     (e)          (e)          (e)         |P=0.280N     P=0.738      P=0.196      (e)          |
|COCH-ARM / FISHERS |     P=0.596N     P=0.500N     P=0.500N     P=0.500N    |P=0.274N     P=0.751N     P=0.184      P=0.500N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Infiltration Cellular Mixed Cell                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     11/100 (11%) 15/100 (15%) 9/100 (9%)   14/100 (14%)|32/100 (32%) 40/100 (40%) 37/100 (37%) 28/100 (28%) |
|POLY-3 ADJUSTED (b)|     12.8%        17.9%        10.6%        17.1%       |35.7%        43.6%        41.2%        32.1%        |
|TERMINAL (d)       |     10/57 (18%)  10/46 (22%)  7/47 (15%)   13/48 (27%) |21/59 (36%)  31/68 (46%)  27/60 (45%)  17/61 (28%)  |
|FIRST INCIDENCE    |     583          466          463          516         |494          522          557          533          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.326      P=0.131      P=0.566N     P=0.182     |P=0.125N     P=0.356      P=0.329      P=0.285N     |
|POLY 3             |     P=0.346      P=0.237      P=0.422N     P=0.280     |P=0.117N     P=0.171      P=0.270      P=0.360N     |
|POLY 1.5           |     P=0.367      P=0.246      P=0.416N     P=0.301     |P=0.119N     P=0.162      P=0.269      P=0.368N     |
|POLY 6             |     P=0.327      P=0.228      P=0.424N     P=0.261     |P=0.101N     P=0.187      P=0.276      P=0.329N     |
|LOGISTIC REGRESSION|     P=0.365      P=0.237      P=0.428N     P=0.260     |P=0.113N     P=0.192      P=0.303      P=0.341N     |
|COCH-ARM / FISHERS |     P=0.397      P=0.264      P=0.407N     P=0.335     |P=0.088N     P=0.151      P=0.276      P=0.322N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 31

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   2/100 (2%)   0/100 (0%)   1/100 (1%)  |1/100 (1%)   1/100 (1%)   3/100 (3%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     2.3%         2.4%         0.0%         1.2%        |1.2%         1.1%         3.3%         2.4%         |
|TERMINAL (d)       |     2/57 (4%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |1/59 (2%)    0/68 (0%)    0/60 (0%)    2/61 (3%)    |
|FIRST INCIDENCE    |     736 (T)      534          ---          485         |737 (T)      508          358          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.477N     P=0.648      P=0.282N     P=0.543N    |P=0.444      P=0.742N     P=0.307      P=0.512      |
|POLY 3             |     P=0.464N     P=0.677      P=0.244N     P=0.517N    |P=0.446      P=0.749N     P=0.324      P=0.498      |
|POLY 1.5           |     P=0.461N     P=0.683      P=0.242N     P=0.510N    |P=0.446      P=0.754N     P=0.317      P=0.494      |
|POLY 6             |     P=0.466N     P=0.672      P=0.245N     P=0.522N    |P=0.453      P=0.742N     P=0.333      P=0.508      |
|LOGISTIC REGRESSION|     P=0.444N     P=0.690N     (e)          P=0.476N    |P=0.578N     P=0.714      P=0.403      P=0.512      |
|COCH-ARM / FISHERS |     P=0.457N     P=0.689N     P=0.249N     P=0.500N    |P=0.464      P=0.751N     P=0.311      P=0.500      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Mixed Cell Focus                                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     25/100 (25%) 28/100 (28%) 25/100 (25%) 23/100 (23%)|39/100 (39%) 45/100 (45%) 49/100 (49%) 42/100 (42%) |
|POLY-3 ADJUSTED (b)|     29.0%        33.5%        29.5%        28.3%       |44.2%        48.6%        54.9%        48.6%        |
|TERMINAL (d)       |     23/57 (40%)  22/46 (48%)  22/47 (47%)  22/48 (46%) |31/59 (53%)  35/68 (52%)  40/60 (67%)  33/61 (54%)  |
|FIRST INCIDENCE    |     647          461          489          673         |533          522          557          606          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.385N     P=0.109      P=0.271      P=0.430     |P=0.530      P=0.517      P=0.119      P=0.468      |
|POLY 3             |     P=0.370N     P=0.316      P=0.536      P=0.529N    |P=0.477      P=0.324      P=0.094      P=0.330      |
|POLY 1.5           |     P=0.339N     P=0.336      P=0.547      P=0.491N    |P=0.490      P=0.284      P=0.094      P=0.322      |
|POLY 6             |     P=0.399N     P=0.296      P=0.530      P=0.565N    |P=0.503      P=0.382      P=0.098      P=0.375      |
|LOGISTIC REGRESSION|     P=0.362N     P=0.249      P=0.519      P=0.555N    |P=0.531N     P=0.333      P=0.139      P=0.418      |
|COCH-ARM / FISHERS |     P=0.298N     P=0.374      P=0.565N     P=0.434N    |P=0.471N     P=0.237      P=0.100      P=0.387      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 32

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Necrosis                                                                                                                    |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     8/100 (8%)   6/100 (6%)   6/100 (6%)   4/100 (4%)  |3/100 (3%)   4/100 (4%)   7/100 (7%)   4/100 (4%)   |
|POLY-3 ADJUSTED (b)|     9.1%         7.2%         7.0%         4.9%        |3.5%         4.5%         8.0%         4.7%         |
|TERMINAL (d)       |     2/57 (4%)    1/46 (2%)    0/47 (0%)    0/48 (0%)   |1/59 (2%)    3/68 (4%)    4/60 (7%)    2/61 (3%)    |
|FIRST INCIDENCE    |     406          490          561          445         |690          619          652          129          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.233N     P=0.465N     P=0.427N     P=0.228N    |P=0.585      P=0.562      P=0.185      P=0.526      |
|POLY 3             |     P=0.229N     P=0.428N     P=0.411N     P=0.218N    |P=0.577      P=0.525      P=0.175      P=0.501      |
|POLY 1.5           |     P=0.220N     P=0.415N     P=0.405N     P=0.205N    |P=0.576      P=0.514      P=0.170      P=0.495      |
|POLY 6             |     P=0.238N     P=0.439N     P=0.413N     P=0.229N    |P=0.588      P=0.538      P=0.182      P=0.515      |
|LOGISTIC REGRESSION|     P=0.180N     P=0.302N     P=0.350N     P=0.136N    |P=0.565N     P=0.513      P=0.173      P=0.562      |
|COCH-ARM / FISHERS |     P=0.207N     P=0.391N     P=0.391N     P=0.186N    |P=0.592N     P=0.500      P=0.166      P=0.500      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver: Bile Duct                                                                                                                 |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     79/100 (79%) 88/100 (88%) 88/100 (88%) 74/100 (74%)|28/100 (28%) 20/100 (20%) 31/100 (31%) 21/100 (21%) |
|POLY-3 ADJUSTED (b)|     83.9%        94.8%        93.9%        81.8%       |32.2%        22.0%        34.4%        24.6%        |
|TERMINAL (d)       |     49/57 (86%)  46/46 (100%) 46/47 (98%)  44/48 (92%) |20/59 (34%)  12/68 (18%)  19/60 (32%)  14/61 (23%)  |
|FIRST INCIDENCE    |     406          461          393          442         |625          611          508          696          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.219N     P=0.009 **   P=0.021 *    P=0.312     |P=0.285N     P=0.055N     P=0.440      P=0.129N     |
|POLY 3             |     P=0.015N*    P=0.007 **   P=0.014 *    P=0.421N    |P=0.324N     P=0.084N     P=0.435      P=0.172N     |
|POLY 1.5           |     P=0.012N*    P=0.017 *    P=0.029 *    P=0.334N    |P=0.314N     P=0.099N     P=0.406      P=0.182N     |
|POLY 6             |     P=0.024N*    P=0.003 **   P=0.005 **   P=0.545N    |P=0.318N     P=0.066N     P=0.477      P=0.150N     |
|LOGISTIC REGRESSION|     P=0.034N*    P=0.008 **   P=0.019 *    P=0.464N    |P=0.282N     P=0.082N     P=0.429      P=0.128N     |
|COCH-ARM / FISHERS |     P=0.017N*    P=0.063      P=0.063      P=0.252N    |P=0.250N     P=0.123N     P=0.378      P=0.162N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 33

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver: Hepatocyte                                                                                                                |
|     Vacuolization Cytoplasmic                                                                                                   |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     14/100 (14%) 13/100 (13%) 19/100 (19%) 19/100 (19%)|11/100 (11%) 12/100 (12%) 9/100 (9%)   11/100 (11%) |
|POLY-3 ADJUSTED (b)|     15.9%        15.1%        21.1%        21.5%       |12.3%        13.2%        10.1%        12.5%        |
|TERMINAL (d)       |     8/57 (14%)   2/46 (4%)    5/47 (11%)   3/48 (6%)   |1/59 (2%)    5/68 (7%)    0/60 (0%)    4/61 (7%)    |
|FIRST INCIDENCE    |     476          267          393          442         |533          619          508          366          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.150      P=0.533      P=0.160      P=0.158     |P=0.558      P=0.580N     P=0.378N     P=0.579N     |
|POLY 3             |     P=0.177      P=0.527N     P=0.242      P=0.222     |P=0.549      P=0.515      P=0.411N     P=0.570      |
|POLY 1.5           |     P=0.174      P=0.516N     P=0.234      P=0.221     |P=0.549      P=0.508      P=0.411N     P=0.567      |
|POLY 6             |     P=0.187      P=0.540N     P=0.255      P=0.227     |P=0.557      P=0.526      P=0.409N     P=0.582      |
|LOGISTIC REGRESSION|     P=0.227      P=0.416N     P=0.265      P=0.321     |P=0.384N     P=0.378      P=0.421N     P=0.461N     |
|COCH-ARM / FISHERS |     P=0.171      P=0.500N     P=0.223      P=0.223     |P=0.547N     P=0.500      P=0.407N     P=0.589N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung                                                                                                                             |
|     Congestion                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     5/100 (5%)   5/100 (5%)   2/100 (2%)   4/100 (4%)  |5/100 (5%)   7/100 (7%)   4/100 (4%)   6/100 (6%)   |
|POLY-3 ADJUSTED (b)|     5.8%         6.0%         2.4%         4.8%        |5.7%         7.7%         4.5%         6.8%         |
|TERMINAL (d)       |     2/57 (4%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |1/59 (2%)    4/68 (6%)    1/60 (2%)    1/61 (2%)    |
|FIRST INCIDENCE    |     693          329          489          442         |494          532          497          129          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.524N     P=0.572      P=0.249N     P=0.544N    |P=0.513      P=0.441      P=0.489N     P=0.485      |
|POLY 3             |     P=0.511N     P=0.609      P=0.228N     P=0.520N    |P=0.542      P=0.407      P=0.490N     P=0.510      |
|POLY 1.5           |     P=0.507N     P=0.616      P=0.225N     P=0.512N    |P=0.537      P=0.396      P=0.495N     P=0.501      |
|POLY 6             |     P=0.513N     P=0.602      P=0.230N     P=0.526N    |P=0.555      P=0.421      P=0.483N     P=0.528      |
|LOGISTIC REGRESSION|     P=0.464N     P=0.568N     P=0.216N     P=0.434N    |P=0.220N     P=0.281      P=0.478N     P=0.389N     |
|COCH-ARM / FISHERS |     P=0.500N     P=0.626N     P=0.222N     P=0.500N    |P=0.542      P=0.384      P=0.500N     P=0.500      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 34

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung                                                                                                                             |
|     Hemorrhage                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   0/100 (0%)   0/100 (0%)   0/100 (0%)  |1/100 (1%)   0/100 (0%)   2/100 (2%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     1.2%         0.0%         0.0%         0.0%        |1.2%         0.0%         2.3%         1.2%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    2/60 (3%)    1/61 (2%)    |
|FIRST INCIDENCE    |     736 (T)      ---          ---          ---         |660          ---          737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.606N     P=0.543N     P=0.538N     P=0.534N    |P=0.589      P=0.480N     P=0.510      P=0.751N     |
|POLY 3             |     P=0.590N     P=0.510N     P=0.505N     P=0.511N    |P=0.581      P=0.492N     P=0.507      P=0.759      |
|POLY 1.5           |     P=0.592N     P=0.507N     P=0.503N     P=0.507N    |P=0.582      P=0.495N     P=0.503      P=0.756      |
|POLY 6             |     P=0.588N     P=0.514N     P=0.506N     P=0.515N    |P=0.585      P=0.487N     P=0.512      P=0.757N     |
|LOGISTIC REGRESSION|     P=0.606N     (e)          (e)          (e)         |P=0.591      P=0.523N     P=0.508      P=0.759      |
|COCH-ARM / FISHERS |     P=0.596N     P=0.500N     P=0.500N     P=0.500N    |P=0.597      P=0.500N     P=0.500      P=0.751N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung                                                                                                                             |
|     Infiltration Cellular Histiocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     8/100 (8%)   18/100 (18%) 12/100 (12%) 6/100 (6%)  |31/100 (31%) 42/100 (42%) 34/100 (34%) 46/100 (46%) |
|POLY-3 ADJUSTED (b)|     9.3%         22.1%        14.2%        7.3%        |35.8%        46.5%        38.2%        53.1%        |
|TERMINAL (d)       |     7/57 (12%)   15/46 (33%)  9/47 (19%)   4/48 (8%)   |26/59 (44%)  35/68 (52%)  25/60 (42%)  39/61 (64%)  |
|FIRST INCIDENCE    |     722          719          557          442         |591          619          647          557          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.056N     P=0.006 **   P=0.137      P=0.498N    |P=0.033 *    P=0.221      P=0.427      P=0.025 *    |
|POLY 3             |     P=0.050N     P=0.018 *    P=0.226      P=0.425N    |P=0.030 *    P=0.092      P=0.429      P=0.014 *    |
|POLY 1.5           |     P=0.047N*    P=0.021 *    P=0.231      P=0.412N    |P=0.031 *    P=0.082      P=0.403      P=0.013 *    |
|POLY 6             |     P=0.052N     P=0.015 *    P=0.224      P=0.436N    |P=0.037 *    P=0.111      P=0.471      P=0.019 *    |
|LOGISTIC REGRESSION|     P=0.052N     P=0.011 *    P=0.215      P=0.439N    |P=0.038 *    P=0.147      P=0.472      P=0.024 *    |
|COCH-ARM / FISHERS |     P=0.044N*    P=0.028 *    P=0.240      P=0.391N    |P=0.052      P=0.071      P=0.381      P=0.021 *    |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 35

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung                                                                                                                             |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   11/100 (11%) 5/100 (5%)   2/100 (2%)  |1/100 (1%)   6/100 (6%)   4/100 (4%)   7/100 (7%)   |
|POLY-3 ADJUSTED (b)|     0.0%         13.4%        5.9%         2.5%        |1.2%         6.6%         4.5%         8.0%         |
|TERMINAL (d)       |     0/57 (0%)    8/46 (17%)   3/47 (6%)    1/48 (2%)   |0/59 (0%)    2/68 (3%)    2/60 (3%)    3/61 (5%)    |
|FIRST INCIDENCE    |     ---          534          477          715         |543          522          358          366          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.143N     P<0.001 **   P=0.026 *    P=0.219     |P=0.114      P=0.078      P=0.190      P=0.038 *    |
|POLY 3             |     P=0.140N     P<0.001 **   P=0.033 *    P=0.226     |P=0.120      P=0.071      P=0.191      P=0.036 *    |
|POLY 1.5           |     P=0.131N     P<0.001 **   P=0.033 *    P=0.231     |P=0.116      P=0.066      P=0.187      P=0.034 *    |
|POLY 6             |     P=0.146N     P<0.001 **   P=0.032 *    P=0.222     |P=0.129      P=0.077      P=0.196      P=0.040 *    |
|LOGISTIC REGRESSION|     P=0.126N     P<0.001 **   P=0.038 *    P=0.221     |P=0.301      P=0.032 *    P=0.193      P=0.063      |
|COCH-ARM / FISHERS |     P=0.122N     P<0.001 **   P=0.030 *    P=0.249     |P=0.120      P=0.059      P=0.184      P=0.032 *    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung                                                                                                                             |
|     Infiltration Cellular Mixed Cell                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)  |2/100 (2%)   5/100 (5%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |2.3%         5.6%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |2/59 (3%)    4/68 (6%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |737 (T)      682          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.061N     P=0.279      P=0.235N     P=0.232N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.057N     P=0.240      P=0.233N     P=0.240N     |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.059N     P=0.232      P=0.236N     P=0.242N     |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.055N     P=0.252      P=0.229N     P=0.233N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.058N     P=0.259      (e)          (e)          |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.058N     P=0.222      P=0.249N     P=0.249N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 36

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung                                                                                                                             |
|     Metaplasia Focal Osseous                                                                                                    |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   1/100 (1%)   0/100 (0%)   4/100 (4%)  |1/100 (1%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         0.0%         4.9%        |1.2%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    2/48 (4%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          544          ---          442         |613          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.010 *    P=0.489      (e)          P=0.055     |P=0.601N     P=0.491N     P=0.486N     P=0.500N     |
|POLY 3             |     P=0.010 *    P=0.491      (e)          P=0.058     |P=0.603N     P=0.492N     P=0.496N     P=0.502N     |
|POLY 1.5           |     P=0.010 *    P=0.494      (e)          P=0.060     |P=0.600N     P=0.495N     P=0.498N     P=0.504N     |
|POLY 6             |     P=0.009 **   P=0.488      (e)          P=0.056     |P=0.606N     P=0.487N     P=0.494N     P=0.497N     |
|LOGISTIC REGRESSION|     P=0.013 *    P=0.560      (e)          P=0.075     |P=0.530N     P=0.552N     P=0.487N     P=0.461N     |
|COCH-ARM / FISHERS |     P=0.011 *    P=0.500      (e)          P=0.061     |P=0.596N     P=0.500N     P=0.500N     P=0.500N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung: Alveolar Epithelium                                                                                                        |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     6/100 (6%)   3/100 (3%)   7/100 (7%)   5/100 (5%)  |4/100 (4%)   3/100 (3%)   4/100 (4%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     7.0%         3.7%         8.2%         6.1%        |4.7%         3.4%         4.6%         1.2%         |
|TERMINAL (d)       |     5/57 (9%)    2/46 (4%)    5/47 (11%)   2/48 (4%)   |4/59 (7%)    3/68 (4%)    3/60 (5%)    1/61 (2%)    |
|FIRST INCIDENCE    |     699          466          463          683         |737 (T)      737 (T)      603          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.528      P=0.339N     P=0.388      P=0.591N    |P=0.170N     P=0.424N     P=0.629N     P=0.172N     |
|POLY 3             |     P=0.542      P=0.269N     P=0.493      P=0.537N    |P=0.172N     P=0.476N     P=0.626N     P=0.184N     |
|POLY 1.5           |     P=0.552      P=0.261N     P=0.495      P=0.523N    |P=0.172N     P=0.486N     P=0.633N     P=0.187N     |
|POLY 6             |     P=0.537      P=0.278N     P=0.491      P=0.548N    |P=0.167N     P=0.461N     P=0.615N     P=0.175N     |
|LOGISTIC REGRESSION|     P=0.556      P=0.267N     P=0.495      P=0.553N    |P=0.161N     P=0.424N     P=0.621N     P=0.172N     |
|COCH-ARM / FISHERS |     P=0.566      P=0.249N     P=0.500      P=0.500N    |P=0.160N     P=0.500N     P=0.640N     P=0.184N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 37

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung: Interstitium                                                                                                               |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     6/100 (6%)   5/100 (5%)   3/100 (3%)   4/100 (4%)  |10/100 (10%) 20/100 (20%) 13/100 (13%) 4/100 (4%)   |
|POLY-3 ADJUSTED (b)|     7.0%         6.0%         3.6%         4.8%        |11.6%        22.0%        14.8%        4.7%         |
|TERMINAL (d)       |     4/57 (7%)    1/46 (2%)    1/47 (2%)    1/48 (2%)   |7/59 (12%)   17/68 (25%)  9/60 (15%)   3/61 (5%)    |
|FIRST INCIDENCE    |     617          526          496          445         |462          508          673          726          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.442N     P=0.584N     P=0.319N     P=0.446N    |P=0.005N**   P=0.079      P=0.356      P=0.075N     |
|POLY 3             |     P=0.416N     P=0.529N     P=0.258N     P=0.395N    |P=0.004N**   P=0.047 *    P=0.344      P=0.086N     |
|POLY 1.5           |     P=0.412N     P=0.519N     P=0.254N     P=0.386N    |P=0.004N**   P=0.042 *    P=0.335      P=0.089N     |
|POLY 6             |     P=0.419N     P=0.539N     P=0.261N     P=0.403N    |P=0.004N**   P=0.055      P=0.359      P=0.078N     |
|LOGISTIC REGRESSION|     P=0.386N     P=0.502N     P=0.249N     P=0.318N    |P=0.004N**   P=0.046 *    P=0.353      P=0.083N     |
|COCH-ARM / FISHERS |     P=0.408N     P=0.500N     P=0.249N     P=0.374N    |P=0.004N**   P=0.037 *    P=0.329      P=0.082N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Congestion                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    0/99 (0%)    0/100 (0%)   0/100 (0%)  |0/100 (0%)   0/99 (0%)    0/100 (0%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         0.0%         0.0%         2.3%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          ---          ---          129          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.041 *    (e)          (e)          P=0.233      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.042 *    (e)          (e)          P=0.242      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.042 *    (e)          (e)          P=0.238      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.043 *    (e)          (e)          P=0.249      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.530      (e)          (e)          P=0.762      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.043 *    (e)          (e)          P=0.249      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 38

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Degeneration Cystic                                                                                                         |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     15/99 (15%)  10/99 (10%)  11/100 (11%) 12/100 (12%)|11/100 (11%) 19/99 (19%)  4/100 (4%)   8/100 (8%)   |
|POLY-3 ADJUSTED (b)|     17.6%        12.1%        13.0%        14.4%       |12.9%        21.1%        4.5%         9.4%         |
|TERMINAL (d)       |     14/57 (25%)  6/46 (13%)   7/47 (15%)   7/48 (15%)  |10/59 (17%)  16/68 (24%)  2/60 (3%)    7/61 (12%)   |
|FIRST INCIDENCE    |     658          544          583          445         |697          508          619          690          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.526      P=0.362N     P=0.421N     P=0.496N    |P=0.101N     P=0.157      P=0.048N*    P=0.282N     |
|POLY 3             |     P=0.536N     P=0.219N     P=0.270N     P=0.363N    |P=0.093N     P=0.104      P=0.045N*    P=0.317N     |
|POLY 1.5           |     P=0.528N     P=0.211N     P=0.265N     P=0.350N    |P=0.095N     P=0.092      P=0.049N*    P=0.328N     |
|POLY 6             |     P=0.540N     P=0.224N     P=0.272N     P=0.370N    |P=0.085N     P=0.122      P=0.041N*    P=0.293N     |
|LOGISTIC REGRESSION|     P=0.557N     P=0.244N     P=0.285N     P=0.384N    |P=0.094N     P=0.118      P=0.044N*    P=0.261N     |
|COCH-ARM / FISHERS |     P=0.518N     P=0.196N     P=0.255N     P=0.329N    |P=0.088N     P=0.078      P=0.052N     P=0.315N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Hemorrhage                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/99 (2%)    1/99 (1%)    0/100 (0%)   7/100 (7%)  |1/100 (1%)   2/99 (2%)    3/100 (3%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     2.3%         1.2%         0.0%         8.5%        |1.2%         2.2%         3.4%         2.4%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    0/47 (0%)    4/48 (8%)   |1/59 (2%)    1/68 (2%)    1/60 (2%)    1/61 (2%)    |
|FIRST INCIDENCE    |     704          682          ---          516         |737 (T)      590          656          729          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.002 **   P=0.535N     P=0.261N     P=0.061     |P=0.560      P=0.534      P=0.325      P=0.517      |
|POLY 3             |     P=0.002 **   P=0.517N     P=0.243N     P=0.076     |P=0.555      P=0.516      P=0.317      P=0.498      |
|POLY 1.5           |     P=0.002 **   P=0.511N     P=0.240N     P=0.081     |P=0.554      P=0.507      P=0.312      P=0.494      |
|POLY 6             |     P=0.002 **   P=0.523N     P=0.245N     P=0.073     |P=0.563      P=0.527      P=0.325      P=0.508      |
|LOGISTIC REGRESSION|     P=0.003 **   P=0.516N     P=0.244N     P=0.085     |P=0.564      P=0.484      P=0.310      P=0.524      |
|COCH-ARM / FISHERS |     P=0.003 **   P=0.500N     P=0.246N     P=0.087     |P=0.571      P=0.496      P=0.311      P=0.500      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 39

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Hyperplasia Lymphoid                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     17/99 (17%)  15/99 (15%)  14/100 (14%) 13/100 (13%)|13/100 (13%) 21/99 (21%)  11/100 (11%) 7/100 (7%)   |
|POLY-3 ADJUSTED (b)|     19.3%        18.2%        16.3%        15.9%       |15.0%        22.9%        12.3%        8.1%         |
|TERMINAL (d)       |     10/57 (18%)  7/46 (15%)   8/47 (17%)   9/48 (19%)  |7/59 (12%)   12/68 (18%)  6/60 (10%)   2/61 (3%)    |
|FIRST INCIDENCE    |     406          544          477          607         |565          532          501          409          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.367N     P=0.541      P=0.494N     P=0.417N    |P=0.022N*    P=0.182      P=0.387N     P=0.110N     |
|POLY 3             |     P=0.346N     P=0.505N     P=0.373N     P=0.346N    |P=0.017N*    P=0.120      P=0.387N     P=0.119N     |
|POLY 1.5           |     P=0.325N     P=0.475N     P=0.360N     P=0.314N    |P=0.017N*    P=0.105      P=0.400N     P=0.125N     |
|POLY 6             |     P=0.365N     P=0.536N     P=0.380N     P=0.374N    |P=0.015N*    P=0.143      P=0.371N     P=0.107N     |
|LOGISTIC REGRESSION|     P=0.317N     P=0.448N     P=0.329N     P=0.293N    |P=0.014N*    P=0.089      P=0.414N     P=0.120N     |
|COCH-ARM / FISHERS |     P=0.293N     P=0.424N     P=0.337N     P=0.266N    |P=0.015N*    P=0.088      P=0.414N     P=0.119N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Infiltration Cellular Histiocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    3/99 (3%)    4/100 (4%)   2/100 (2%)  |3/100 (3%)   1/99 (1%)    2/100 (2%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     0.0%         3.7%         4.8%         2.5%        |3.5%         1.1%         2.3%         1.2%         |
|TERMINAL (d)       |     0/57 (0%)    3/46 (7%)    3/47 (6%)    1/48 (2%)   |3/59 (5%)    1/68 (2%)    2/60 (3%)    1/61 (2%)    |
|FIRST INCIDENCE    |     ---          736 (T)      604          703         |737 (T)      737 (T)      737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.569      P=0.087      P=0.047 *    P=0.216     |P=0.403N     P=0.257N     P=0.492N     P=0.295N     |
|POLY 3             |     P=0.574      P=0.113      P=0.062      P=0.228     |P=0.407N     P=0.293N     P=0.490N     P=0.309N     |
|POLY 1.5           |     P=0.585      P=0.116      P=0.063      P=0.233     |P=0.405N     P=0.300N     P=0.495N     P=0.313N     |
|POLY 6             |     P=0.565      P=0.109      P=0.061      P=0.224     |P=0.404N     P=0.283N     P=0.482N     P=0.298N     |
|LOGISTIC REGRESSION|     P=0.580      P=0.087      P=0.063      P=0.223     |P=0.403N     P=0.257N     P=0.492N     P=0.295N     |
|COCH-ARM / FISHERS |     P=0.601      P=0.123      P=0.062      P=0.251     |P=0.388N     P=0.314N     P=0.500N     P=0.311N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 40

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Pigmentation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    1/99 (1%)    0/100 (0%)   1/100 (1%)  |0/100 (0%)   0/99 (0%)    2/100 (2%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     1.2%         1.2%         0.0%         1.2%        |0.0%         0.0%         2.3%         2.4%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    2/60 (3%)    1/61 (2%)    |
|FIRST INCIDENCE    |     736 (T)      619          ---          481         |---          ---          737 (T)      734          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.652      P=0.724      P=0.538N     P=0.739     |P=0.161      (e)          P=0.243      P=0.251      |
|POLY 3             |     P=0.658      P=0.751      P=0.503N     P=0.752     |P=0.157      (e)          P=0.243      P=0.237      |
|POLY 1.5           |     P=0.661      P=0.754      P=0.501N     P=0.756     |P=0.157      (e)          P=0.241      P=0.235      |
|POLY 6             |     P=0.656      P=0.747      P=0.505N     P=0.748     |P=0.161      (e)          P=0.247      P=0.243      |
|LOGISTIC REGRESSION|     P=0.676      P=0.759N     (e)          P=0.730N    |P=0.168      (e)          P=0.243      P=0.254      |
|COCH-ARM / FISHERS |     P=0.665      P=0.751N     P=0.497N     P=0.749N    |P=0.166      (e)          P=0.249      P=0.249      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mesenteric                                                                                                           |
|     Hemorrhage                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   2/99 (2%)    2/100 (2%)   2/100 (2%)  |3/100 (3%)   3/99 (3%)    2/99 (2%)    4/99 (4%)    |
|POLY-3 ADJUSTED (b)|     2.3%         2.5%         2.4%         2.5%        |3.5%         3.4%         2.3%         4.7%         |
|TERMINAL (d)       |     1/57 (2%)    1/46 (2%)    1/47 (2%)    1/48 (2%)   |0/59 (0%)    2/68 (3%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     704          490          561          716         |533          674          497          545          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.614      P=0.649      P=0.652      P=0.652     |P=0.376      P=0.625N     P=0.486N     P=0.505      |
|POLY 3             |     P=0.620      P=0.674      P=0.686      P=0.672     |P=0.369      P=0.651N     P=0.497N     P=0.487      |
|POLY 1.5           |     P=0.627      P=0.679      P=0.688      P=0.680     |P=0.368      P=0.657N     P=0.501N     P=0.482      |
|POLY 6             |     P=0.614      P=0.668      P=0.684      P=0.666     |P=0.376      P=0.642N     P=0.491N     P=0.500      |
|LOGISTIC REGRESSION|     P=0.631N     P=0.685N     P=0.692N     P=0.666     |P=0.507      P=0.590      P=0.450N     P=0.559      |
|COCH-ARM / FISHERS |     P=0.634N     P=0.686      P=0.689N     P=0.689N    |P=0.385      P=0.654      P=0.505N     P=0.494      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 41

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mesenteric                                                                                                           |
|     Hyperplasia Lymphoid                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   1/99 (1%)    1/100 (1%)   2/100 (2%)  |1/100 (1%)   0/99 (0%)    2/99 (2%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         1.2%         2.5%        |1.2%         0.0%         2.3%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    1/46 (2%)    0/47 (0%)    2/48 (4%)   |0/59 (0%)    0/68 (0%)    2/60 (3%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          736 (T)      659          736 (T)     |494          ---          737 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.219      P=0.457      P=0.495      P=0.202     |P=0.456N     P=0.498N     P=0.502      P=0.515N     |
|POLY 3             |     P=0.222      P=0.488      P=0.496      P=0.226     |P=0.460N     P=0.494N     P=0.502      P=0.505N     |
|POLY 1.5           |     P=0.226      P=0.492      P=0.497      P=0.231     |P=0.458N     P=0.498N     P=0.499      P=0.507N     |
|POLY 6             |     P=0.217      P=0.484      P=0.495      P=0.222     |P=0.457N     P=0.489N     P=0.507      P=0.500N     |
|LOGISTIC REGRESSION|     P=0.221      P=0.457      P=0.506      P=0.202     |P=0.399N     P=0.722N     P=0.495      P=0.358N     |
|COCH-ARM / FISHERS |     P=0.233      P=0.497      P=0.500      P=0.249     |P=0.444N     P=0.503N     P=0.496      P=0.503N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mesenteric                                                                                                           |
|     Infiltration Cellular Histiocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     65/100 (65%) 70/99 (71%)  73/100 (73%) 70/100 (70%)|85/100 (85%) 92/99 (93%)  86/99 (87%)  87/99 (88%)  |
|POLY-3 ADJUSTED (b)|     72.0%        76.9%        77.0%        74.5%       |88.2%        94.3%        88.9%        90.9%        |
|TERMINAL (d)       |     48/57 (84%)  41/46 (89%)  38/47 (81%)  37/48 (77%) |55/59 (93%)  64/68 (94%)  56/60 (93%)  56/61 (92%)  |
|FIRST INCIDENCE    |     476          267          393          410         |462          498          358          233          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.261      P=0.024 *    P=0.024 *    P=0.056     |P=0.471      P=0.379N     P=0.485N     P=0.532N     |
|POLY 3             |     P=0.518N     P=0.264      P=0.257      P=0.410     |P=0.563N     P=0.090      P=0.529      P=0.347      |
|POLY 1.5           |     P=0.518      P=0.259      P=0.200      P=0.349     |P=0.544      P=0.073      P=0.485      P=0.300      |
|POLY 6             |     P=0.429N     P=0.268      P=0.361      P=0.507     |P=0.517N     P=0.126      P=0.585      P=0.426      |
|LOGISTIC REGRESSION|     P=0.387      P=0.133      P=0.100      P=0.182     |P=0.474      P=0.087      P=0.446      P=0.251      |
|COCH-ARM / FISHERS |     P=0.438      P=0.239      P=0.142      P=0.273     |P=0.481N     P=0.059      P=0.431      P=0.350      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 42

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mammary Gland                                                                                                                    |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     18/99 (18%)  15/97 (15%)  10/100 (10%) 14/98 (14%) |47/100 (47%) 54/100 (54%) 56/100 (56%) 61/100 (61%) |
|POLY-3 ADJUSTED (b)|     20.4%        18.3%        11.8%        17.3%       |51.9%        57.8%        59.9%        69.1%        |
|TERMINAL (d)       |     7/57 (12%)   4/46 (9%)    3/47 (6%)    5/46 (11%)  |29/59 (49%)  41/68 (60%)  36/60 (60%)  44/61 (72%)  |
|FIRST INCIDENCE    |     581          613          583          516         |543          563          429          579          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.486N     P=0.499N     P=0.136N     P=0.434N    |P=0.059      P=0.510      P=0.216      P=0.085      |
|POLY 3             |     P=0.461N     P=0.438N     P=0.090N     P=0.373N    |P=0.016 *    P=0.251      P=0.164      P=0.011 *    |
|POLY 1.5           |     P=0.437N     P=0.415N     P=0.082N     P=0.339N    |P=0.021 *    P=0.227      P=0.146      P=0.012 *    |
|POLY 6             |     P=0.486N     P=0.459N     P=0.101N     P=0.411N    |P=0.016 *    P=0.284      P=0.188      P=0.013 *    |
|LOGISTIC REGRESSION|     P=0.438N     P=0.390N     P=0.076N     P=0.315N    |P=0.028 *    P=0.266      P=0.142      P=0.022 *    |
|COCH-ARM / FISHERS |     P=0.408N     P=0.376N     P=0.072N     P=0.292N    |P=0.059      P=0.198      P=0.129      P=0.032 *    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mammary Gland                                                                                                                    |
|     Fibrosis                                                                                                                    |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    2/97 (2%)    1/100 (1%)   2/98 (2%)   |0/100 (0%)   2/100 (2%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         2.5%         1.2%         2.5%        |0.0%         2.2%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    1/47 (2%)    2/46 (4%)   |0/59 (0%)    2/68 (3%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          624          736 (T)      736 (T)     |---          737 (T)      ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.341      P=0.217      P=0.462      P=0.193     |P=0.374N     P=0.271      (e)          (e)          |
|POLY 3             |     P=0.349      P=0.227      P=0.497      P=0.223     |P=0.362N     P=0.249      (e)          (e)          |
|POLY 1.5           |     P=0.357      P=0.229      P=0.499      P=0.228     |P=0.366N     P=0.244      (e)          (e)          |
|POLY 6             |     P=0.341      P=0.225      P=0.495      P=0.218     |P=0.355N     P=0.255      (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.363      P=0.257      P=0.462      P=0.193     |(e)          P=0.271      (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.370      P=0.244      P=0.503      P=0.246     |P=0.367N     P=0.249      (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 43

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mammary Gland                                                                                                                    |
|     Galactocele                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    2/97 (2%)    5/100 (5%)   1/98 (1%)   |10/100 (10%) 7/100 (7%)   14/100 (14%) 7/100 (7%)   |
|POLY-3 ADJUSTED (b)|     0.0%         2.5%         6.0%         1.3%        |11.4%        7.8%         15.6%        8.2%         |
|TERMINAL (d)       |     0/57 (0%)    1/46 (2%)    4/47 (9%)    1/46 (2%)   |4/59 (7%)    5/68 (7%)    6/60 (10%)   5/61 (8%)    |
|FIRST INCIDENCE    |     ---          659          718          736 (T)     |602          619          488          667          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.539N     P=0.208      P=0.024 *    P=0.457     |P=0.326N     P=0.233N     P=0.306      P=0.281N     |
|POLY 3             |     P=0.532N     P=0.225      P=0.032 *    P=0.486     |P=0.350N     P=0.285N     P=0.276      P=0.323N     |
|POLY 1.5           |     P=0.519N     P=0.228      P=0.033 *    P=0.491     |P=0.347N     P=0.293N     P=0.266      P=0.326N     |
|POLY 6             |     P=0.543N     P=0.223      P=0.031 *    P=0.481     |P=0.341N     P=0.275N     P=0.289      P=0.310N     |
|LOGISTIC REGRESSION|     P=0.531N     P=0.229      P=0.031 *    P=0.457     |P=0.319N     P=0.311N     P=0.251      P=0.313N     |
|COCH-ARM / FISHERS |     P=0.501N     P=0.244      P=0.030 *    P=0.497     |P=0.309N     P=0.307N     P=0.257      P=0.307N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mammary Gland                                                                                                                    |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/99 (2%)    0/97 (0%)    3/100 (3%)   1/98 (1%)   |0/100 (0%)   1/100 (1%)   2/100 (2%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     2.4%         0.0%         3.6%         1.3%        |0.0%         1.1%         2.3%         2.4%         |
|TERMINAL (d)       |     2/57 (4%)    0/46 (0%)    1/47 (2%)    0/46 (0%)   |0/59 (0%)    1/68 (2%)    1/60 (2%)    1/61 (2%)    |
|FIRST INCIDENCE    |     736 (T)      ---          557          732         |---          737 (T)      687          735          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.604N     P=0.287N     P=0.436      P=0.560N    |P=0.289      P=0.528      P=0.248      P=0.249      |
|POLY 3             |     P=0.594N     P=0.252N     P=0.496      P=0.525N    |P=0.284      P=0.509      P=0.244      P=0.237      |
|POLY 1.5           |     P=0.587N     P=0.249N     P=0.499      P=0.516N    |P=0.282      P=0.505      P=0.241      P=0.235      |
|POLY 6             |     P=0.600N     P=0.255N     P=0.495      P=0.533N    |P=0.291      P=0.514      P=0.248      P=0.243      |
|LOGISTIC REGRESSION|     P=0.595N     (e)          P=0.499      P=0.542N    |P=0.290      P=0.528      P=0.243      P=0.254      |
|COCH-ARM / FISHERS |     P=0.579N     P=0.254N     P=0.505      P=0.504N    |P=0.293      P=0.500      P=0.249      P=0.249      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 44

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mammary Gland                                                                                                                    |
|     Pigmentation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/99 (2%)    0/97 (0%)    0/100 (0%)   0/98 (0%)   |0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     2.3%         0.0%         0.0%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/46 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     303          ---          ---          ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.365N     P=0.250N     P=0.243N     P=0.244N    |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.359N     P=0.256N     P=0.245N     P=0.258N    |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.361N     P=0.251N     P=0.242N     P=0.251N    |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.358N     P=0.260N     P=0.248N     P=0.264N    |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.392N     P=0.145N     P=0.228N     P=0.202N    |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.365N     P=0.254N     P=0.246N     P=0.251N    |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mammary Gland: Epithelium                                                                                                        |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     9/99 (9%)    1/97 (1%)    4/100 (4%)   3/98 (3%)   |1/100 (1%)   4/100 (4%)   3/100 (3%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     10.6%        1.3%         4.8%         3.8%        |1.2%         4.5%         3.4%         2.3%         |
|TERMINAL (d)       |     8/57 (14%)   1/46 (2%)    2/47 (4%)    3/46 (7%)   |1/59 (2%)    3/68 (4%)    2/60 (3%)    1/61 (2%)    |
|FIRST INCIDENCE    |     722          736 (T)      694          736 (T)     |737 (T)      631          656          522          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.344N     P=0.024N*    P=0.192N     P=0.124N    |P=0.515N     P=0.226      P=0.318      P=0.502      |
|POLY 3             |     P=0.306N     P=0.013N*    P=0.129N     P=0.084N    |P=0.507N     P=0.197      P=0.316      P=0.501      |
|POLY 1.5           |     P=0.300N     P=0.013N*    P=0.126N     P=0.078N    |P=0.512N     P=0.191      P=0.312      P=0.495      |
|POLY 6             |     P=0.312N     P=0.014N*    P=0.130N     P=0.090N    |P=0.495N     P=0.207      P=0.323      P=0.512      |
|LOGISTIC REGRESSION|     P=0.328N     P=0.016N*    P=0.132N     P=0.096N    |P=0.505N     P=0.197      P=0.318      P=0.513      |
|COCH-ARM / FISHERS |     P=0.294N     P=0.010N*    P=0.121N     P=0.069N    |P=0.501N     P=0.184      P=0.311      P=0.500      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 45

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mesentery: Fat                                                                                                                   |
|     Necrosis                                                                                                                    |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     14/17 (82%)  15/22 (68%)  23/27 (85%)  15/21 (71%) |9/11 (82%)   4/6 (67%)    4/5 (80%)    10/13 (77%)  |
|POLY-3 ADJUSTED (b)|     84.7%        77.1%        90.5%        79.3%       |88.1%        66.7%        80.0%        78.5%        |
|TERMINAL (d)       |     5/6 (83%)    9/10 (90%)   11/12 (92%)  7/9 (78%)   |6/6 (100%)   4/6 (67%)    2/3 (67%)    9/11 (82%)   |
|FIRST INCIDENCE    |     581          267          393          410         |598          737 (T)      648          485          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.476N     P=0.422N     P=0.265      P=0.527N    |P=0.508N     P=0.030N*    P=0.272N     P=0.150N     |
|POLY 3             |     P=0.487N     P=0.436N     P=0.463      P=0.510N    |P=0.606N     P=0.343N     P=0.637N     P=0.479N     |
|POLY 1.5           |     P=0.464N     P=0.352N     P=0.507      P=0.442N    |P=0.609N     P=0.385N     P=0.671N     P=0.513N     |
|POLY 6             |     P=0.482N     P=0.570N     P=0.427      P=0.570N    |P=0.620N     P=0.308N     P=0.604N     P=0.464N     |
|LOGISTIC REGRESSION|     P=0.465N     P=0.310N     P=0.535      P=0.396N    |P=0.620N     P=0.290N     P=0.641N     P=0.510N     |
|COCH-ARM / FISHERS |     P=0.416N     P=0.265N     P=0.559      P=0.346N    |P=0.635N     P=0.445N     P=0.705N     P=0.585N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Nose                                                                                                                             |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     27/100 (27%) 28/98 (29%)  40/100 (40%) 29/100 (29%)|9/100 (9%)   10/100 (10%) 11/100 (11%) 6/100 (6%)   |
|POLY-3 ADJUSTED (b)|     30.2%        33.0%        44.8%        33.3%       |10.2%        11.0%        12.5%        7.0%         |
|TERMINAL (d)       |     17/57 (30%)  11/45 (24%)  18/47 (38%)  11/48 (23%) |3/59 (5%)    6/68 (9%)    8/60 (13%)   3/61 (5%)    |
|FIRST INCIDENCE    |     502          461          393          442         |462          498          508          634          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.471      P=0.260      P=0.016 *    P=0.260     |P=0.199N     P=0.585      P=0.425      P=0.288N     |
|POLY 3             |     P=0.532N     P=0.404      P=0.028 *    P=0.388     |P=0.208N     P=0.524      P=0.405      P=0.319N     |
|POLY 1.5           |     P=0.518N     P=0.423      P=0.031 *    P=0.406     |P=0.205N     P=0.513      P=0.404      P=0.320N     |
|POLY 6             |     P=0.541N     P=0.394      P=0.028 *    P=0.378     |P=0.201N     P=0.540      P=0.408      P=0.308N     |
|LOGISTIC REGRESSION|     P=0.509N     P=0.448      P=0.033 *    P=0.442     |P=0.158N     P=0.399      P=0.395      P=0.263N     |
|COCH-ARM / FISHERS |     P=0.501N     P=0.465      P=0.036 *    P=0.437     |P=0.176N     P=0.500      P=0.407      P=0.296N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 46

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Nose                                                                                                                             |
|     Metaplasia                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   2/98 (2%)    0/100 (0%)   0/100 (0%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         2.5%         0.0%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/45 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          682          ---          ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.373N     P=0.230      (e)          (e)         |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.380N     P=0.222      (e)          (e)         |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.374N     P=0.227      (e)          (e)         |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.385N     P=0.219      (e)          (e)         |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.369N     P=0.226      (e)          (e)         |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.366N     P=0.244      (e)          (e)         |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Nose: Nasolacrimal Duct                                                                                                          |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     7/100 (7%)   8/98 (8%)    13/100 (13%) 10/100 (10%)|2/100 (2%)   9/100 (9%)   6/100 (6%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     8.1%         9.8%         15.4%        12.1%       |2.3%         9.9%         6.8%         1.2%         |
|TERMINAL (d)       |     6/57 (11%)   3/45 (7%)    8/47 (17%)   5/48 (10%)  |1/59 (2%)    4/68 (6%)    4/60 (7%)    1/61 (2%)    |
|FIRST INCIDENCE    |     647          466          583          494         |591          508          647          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.328      P=0.372      P=0.064      P=0.217     |P=0.057N     P=0.048 *    P=0.152      P=0.499N     |
|POLY 3             |     P=0.349      P=0.460      P=0.108      P=0.275     |P=0.054N     P=0.038 *    P=0.146      P=0.504N     |
|POLY 1.5           |     P=0.361      P=0.468      P=0.112      P=0.286     |P=0.055N     P=0.034 *    P=0.142      P=0.507N     |
|POLY 6             |     P=0.344      P=0.453      P=0.106      P=0.268     |P=0.050N     P=0.043 *    P=0.152      P=0.495N     |
|LOGISTIC REGRESSION|     P=0.368      P=0.496      P=0.104      P=0.277     |P=0.046N*    P=0.020 *    P=0.141      P=0.501N     |
|COCH-ARM / FISHERS |     P=0.380      P=0.484      P=0.119      P=0.307     |P=0.051N     P=0.029 *    P=0.140      P=0.500N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 47

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Nose: Olfactory Epithelium                                                                                                       |
|     Cytoplasmic Alteration                                                                                                      |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     36/100 (36%) 32/98 (33%)  48/100 (48%) 41/100 (41%)|69/100 (69%) 83/100 (83%) 87/100 (87%) 74/100 (74%) |
|POLY-3 ADJUSTED (b)|     40.2%        38.0%        55.3%        48.6%       |73.9%        87.2%        90.8%        81.5%        |
|TERMINAL (d)       |     24/57 (42%)  17/45 (38%)  27/47 (57%)  24/48 (50%) |46/59 (78%)  62/68 (91%)  57/60 (95%)  50/61 (82%)  |
|FIRST INCIDENCE    |     406          329          586          410         |462          498          358          394          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.167      P=0.449      P=0.016 *    P=0.112     |P=0.427N     P=0.320      P=0.035 *    P=0.419      |
|POLY 3             |     P=0.143      P=0.442N     P=0.027 *    P=0.162     |P=0.512N     P=0.010 *    P<0.001 **   P=0.128      |
|POLY 1.5           |     P=0.179      P=0.411N     P=0.036 *    P=0.206     |P=0.477N     P=0.012 *    P<0.001 **   P=0.142      |
|POLY 6             |     P=0.112      P=0.477N     P=0.022 *    P=0.125     |P=0.491N     P=0.011 *    P<0.001 **   P=0.143      |
|LOGISTIC REGRESSION|     P=0.173      P=0.420N     P=0.035 *    P=0.178     |P=0.500N     P=0.032 *    P=0.002 **   P=0.177      |
|COCH-ARM / FISHERS |     P=0.239      P=0.365N     P=0.057      P=0.281     |P=0.269N     P=0.015 *    P=0.002 **   P=0.266      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Nose: Respiratory Epithelium                                                                                                     |
|     Cytoplasmic Alteration                                                                                                      |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/100 (3%)   1/98 (1%)    1/100 (1%)   0/100 (0%)  |4/100 (4%)   1/100 (1%)   3/100 (3%)   5/100 (5%)   |
|POLY-3 ADJUSTED (b)|     3.5%         1.2%         1.2%         0.0%        |4.6%         1.1%         3.4%         5.7%         |
|TERMINAL (d)       |     2/57 (4%)    0/45 (0%)    0/47 (0%)    0/48 (0%)   |3/59 (5%)    0/68 (0%)    2/60 (3%)    2/61 (3%)    |
|FIRST INCIDENCE    |     710          329          496          ---         |495          563          728          409          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.171N     P=0.353N     P=0.344N     P=0.149N    |P=0.172      P=0.156N     P=0.491N     P=0.495      |
|POLY 3             |     P=0.164N     P=0.331N     P=0.313N     P=0.132N    |P=0.180      P=0.169N     P=0.492N     P=0.508      |
|POLY 1.5           |     P=0.163N     P=0.324N     P=0.311N     P=0.128N    |P=0.178      P=0.175N     P=0.497N     P=0.497      |
|POLY 6             |     P=0.165N     P=0.338N     P=0.315N     P=0.135N    |P=0.186      P=0.161N     P=0.484N     P=0.529      |
|LOGISTIC REGRESSION|     P=0.154N     P=0.267N     P=0.299N     P=0.136N    |P=0.306      P=0.220N     P=0.496N     P=0.615      |
|COCH-ARM / FISHERS |     P=0.161N     P=0.318N     P=0.311N     P=0.123N    |P=0.188      P=0.184N     P=0.500N     P=0.500      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 48

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Ovary                                                                                                                            |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |4/100 (4%)   3/100 (3%)   4/100 (4%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|                                                        |4.7%         3.4%         4.6%         1.2%         |
|TERMINAL (d)       |                                                        |4/59 (7%)    3/68 (4%)    4/60 (7%)    1/61 (2%)    |
|FIRST INCIDENCE    |                                                        |737 (T)      737 (T)      737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.169N     P=0.424N     P=0.633N     P=0.172N     |
|POLY 3             |                                                        |P=0.171N     P=0.476N     P=0.628N     P=0.184N     |
|POLY 1.5           |                                                        |P=0.172N     P=0.486N     P=0.635N     P=0.187N     |
|POLY 6             |                                                        |P=0.166N     P=0.461N     P=0.619N     P=0.175N     |
|LOGISTIC REGRESSION|                                                        |P=0.169N     P=0.424N     P=0.633N     P=0.172N     |
|COCH-ARM / FISHERS |                                                        |P=0.160N     P=0.500N     P=0.640N     P=0.184N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Ovary                                                                                                                            |
|     Pigmentation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |0/100 (0%)   0/100 (0%)   2/100 (2%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|                                                        |0.0%         0.0%         2.3%         0.0%         |
|TERMINAL (d)       |                                                        |0/59 (0%)    0/68 (0%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |                                                        |---          ---          681          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.635N     (e)          P=0.252      (e)          |
|POLY 3             |                                                        |P=0.644N     (e)          P=0.244      (e)          |
|POLY 1.5           |                                                        |P=0.644N     (e)          P=0.241      (e)          |
|POLY 6             |                                                        |P=0.639N     (e)          P=0.248      (e)          |
|LOGISTIC REGRESSION|                                                        |P=0.640N     (e)          P=0.242      (e)          |
|COCH-ARM / FISHERS |                                                        |P=0.634N     (e)          P=0.249      (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 49

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Ovary: Follicle                                                                                                                  |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |3/100 (3%)   5/100 (5%)   2/100 (2%)   4/100 (4%)   |
|POLY-3 ADJUSTED (b)|                                                        |3.5%         5.6%         2.3%         4.7%         |
|TERMINAL (d)       |                                                        |2/59 (3%)    5/68 (7%)    2/60 (3%)    3/61 (5%)    |
|FIRST INCIDENCE    |                                                        |553          737 (T)      737 (T)      606          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.530      P=0.430      P=0.493N     P=0.508      |
|POLY 3             |                                                        |P=0.539      P=0.380      P=0.493N     P=0.496      |
|POLY 1.5           |                                                        |P=0.536      P=0.371      P=0.497N     P=0.490      |
|POLY 6             |                                                        |P=0.550      P=0.393      P=0.487N     P=0.511      |
|LOGISTIC REGRESSION|                                                        |P=0.537      P=0.383      P=0.497N     P=0.497      |
|COCH-ARM / FISHERS |                                                        |P=0.552      P=0.360      P=0.500N     P=0.500      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Ovary: Periovarian Tissue                                                                                                        |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |6/100 (6%)   8/100 (8%)   12/100 (12%) 8/100 (8%)   |
|POLY-3 ADJUSTED (b)|                                                        |7.0%         8.9%         13.6%        9.3%         |
|TERMINAL (d)       |                                                        |6/59 (10%)   6/68 (9%)    5/60 (8%)    4/61 (7%)    |
|FIRST INCIDENCE    |                                                        |737 (T)      563          617          649          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.518      P=0.492      P=0.127      P=0.425      |
|POLY 3             |                                                        |P=0.510      P=0.432      P=0.122      P=0.393      |
|POLY 1.5           |                                                        |P=0.505      P=0.414      P=0.114      P=0.381      |
|POLY 6             |                                                        |P=0.533      P=0.456      P=0.134      P=0.421      |
|LOGISTIC REGRESSION|                                                        |P=0.509      P=0.439      P=0.122      P=0.402      |
|COCH-ARM / FISHERS |                                                        |P=0.535      P=0.391      P=0.108      P=0.391      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 50

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Ovary: Rete Ovarii                                                                                                               |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |8/100 (8%)   16/100 (16%) 8/100 (8%)   15/100 (15%) |
|POLY-3 ADJUSTED (b)|                                                        |9.3%         17.7%        9.1%         17.6%        |
|TERMINAL (d)       |                                                        |6/59 (10%)   12/68 (18%)  5/60 (8%)    12/61 (20%)  |
|FIRST INCIDENCE    |                                                        |673          631          686          634          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.199      P=0.121      P=0.578N     P=0.111      |
|POLY 3             |                                                        |P=0.191      P=0.079      P=0.584N     P=0.086      |
|POLY 1.5           |                                                        |P=0.189      P=0.071      P=0.593N     P=0.082      |
|POLY 6             |                                                        |P=0.204      P=0.090      P=0.569N     P=0.097      |
|LOGISTIC REGRESSION|                                                        |P=0.200      P=0.089      P=0.569N     P=0.105      |
|COCH-ARM / FISHERS |                                                        |P=0.213      P=0.063      P=0.602N     P=0.091      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas                                                                                                                         |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/98 (3%)    0/99 (0%)    1/99 (1%)    1/99 (1%)   |0/100 (0%)   0/100 (0%)   0/99 (0%)    0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     3.5%         0.0%         1.2%         1.2%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    0/47 (0%)    1/48 (2%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     647          ---          728          736 (T)     |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.557N     P=0.146N     P=0.336N     P=0.352N    |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.541N     P=0.132N     P=0.314N     P=0.329N    |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.540N     P=0.127N     P=0.309N     P=0.318N    |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.540N     P=0.137N     P=0.319N     P=0.339N    |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.555N     P=0.125N     P=0.309N     P=0.323N    |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.541N     P=0.121N     P=0.307N     P=0.307N    |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 51

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas                                                                                                                         |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     5/98 (5%)    14/99 (14%)  13/99 (13%)  9/99 (9%)   |14/100 (14%) 10/100 (10%) 9/99 (9%)    9/100 (9%)   |
|POLY-3 ADJUSTED (b)|     5.9%         17.2%        15.4%        11.1%       |16.1%        11.0%        10.3%        10.5%        |
|TERMINAL (d)       |     5/57 (9%)    11/46 (24%)  11/47 (23%)  6/48 (13%)  |10/59 (17%)  7/68 (10%)   8/60 (13%)   7/61 (12%)   |
|FIRST INCIDENCE    |     736 (T)      396          479          551         |533          532          617          427          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.514N     P=0.008 **   P=0.015 *    P=0.126     |P=0.320N     P=0.175N     P=0.176N     P=0.173N     |
|POLY 3             |     P=0.494N     P=0.019 *    P=0.038 *    P=0.178     |P=0.321N     P=0.219N     P=0.182N     P=0.192N     |
|POLY 1.5           |     P=0.477N     P=0.022 *    P=0.040 *    P=0.189     |P=0.320N     P=0.235N     P=0.189N     P=0.200N     |
|POLY 6             |     P=0.505N     P=0.016 *    P=0.036 *    P=0.169     |P=0.313N     P=0.198N     P=0.171N     P=0.174N     |
|LOGISTIC REGRESSION|     P=0.495N     P=0.017 *    P=0.036 *    P=0.165     |P=0.310N     P=0.249N     P=0.176N     P=0.195N     |
|COCH-ARM / FISHERS |     P=0.448N     P=0.027 *    P=0.043 *    P=0.209     |P=0.288N     P=0.257N     P=0.195N     P=0.188N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas                                                                                                                         |
|     Metaplasia Hepatocyte                                                                                                       |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/98 (0%)    0/99 (0%)    0/99 (0%)    0/99 (0%)   |0/100 (0%)   0/100 (0%)   2/99 (2%)    0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         0.0%         2.3%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          ---          694          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.632N     (e)          P=0.251      (e)          |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.643N     (e)          P=0.242      (e)          |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.644N     (e)          P=0.239      (e)          |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.638N     (e)          P=0.247      (e)          |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.640N     (e)          P=0.243      (e)          |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.634N     (e)          P=0.246      (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 52

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas: Acinus                                                                                                                 |
|     Atrophy Diffuse                                                                                                             |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/98 (0%)    3/99 (3%)    1/99 (1%)    1/99 (1%)   |0/100 (0%)   3/100 (3%)   1/99 (1%)    2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     0.0%         3.7%         1.2%         1.2%        |0.0%         3.4%         1.2%         2.4%         |
|TERMINAL (d)       |     0/57 (0%)    1/46 (2%)    0/47 (0%)    1/48 (2%)   |0/59 (0%)    3/68 (4%)    0/60 (0%)    1/61 (2%)    |
|FIRST INCIDENCE    |     ---          596          586          736 (T)     |---          737 (T)      665          735          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.570N     P=0.102      P=0.491      P=0.466     |P=0.490      P=0.149      P=0.513      P=0.249      |
|POLY 3             |     P=0.567N     P=0.114      P=0.498      P=0.489     |P=0.495      P=0.130      P=0.504      P=0.237      |
|POLY 1.5           |     P=0.558N     P=0.117      P=0.500      P=0.494     |P=0.491      P=0.126      P=0.501      P=0.235      |
|POLY 6             |     P=0.575N     P=0.111      P=0.497      P=0.484     |P=0.505      P=0.135      P=0.508      P=0.243      |
|LOGISTIC REGRESSION|     P=0.530N     P=0.138      P=0.502      P=0.466     |P=0.495      P=0.149      P=0.496      P=0.254      |
|COCH-ARM / FISHERS |     P=0.543N     P=0.125      P=0.503      P=0.503     |P=0.499      P=0.123      P=0.497      P=0.249      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas: Acinus                                                                                                                 |
|     Atrophy Focal                                                                                                               |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     33/98 (34%)  26/99 (26%)  40/99 (40%)  27/99 (27%) |15/100 (15%) 18/100 (18%) 26/99 (26%)  16/100 (16%) |
|POLY-3 ADJUSTED (b)|     36.7%        30.8%        44.8%        32.0%       |17.2%        19.9%        29.1%        18.8%        |
|TERMINAL (d)       |     19/57 (33%)  11/46 (24%)  17/47 (36%)  17/48 (35%) |10/59 (17%)  15/68 (22%)  17/60 (28%)  11/61 (18%)  |
|FIRST INCIDENCE    |     303          396          393          442         |553          508          501          668          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.371N     P=0.405N     P=0.098      P=0.437N    |P=0.428N     P=0.505      P=0.056      P=0.545      |
|POLY 3             |     P=0.325N     P=0.252N     P=0.165      P=0.310N    |P=0.457N     P=0.390      P=0.042 *    P=0.471      |
|POLY 1.5           |     P=0.294N     P=0.218N     P=0.178      P=0.267N    |P=0.451N     P=0.374      P=0.039 *    P=0.466      |
|POLY 6             |     P=0.361N     P=0.286N     P=0.162      P=0.356N    |P=0.444N     P=0.411      P=0.049 *    P=0.491      |
|LOGISTIC REGRESSION|     P=0.266N     P=0.164N     P=0.208      P=0.202N    |P=0.428N     P=0.387      P=0.039 *    P=0.500      |
|COCH-ARM / FISHERS |     P=0.256N     P=0.164N     P=0.203      P=0.206N    |P=0.387N     P=0.352      P=0.036 *    P=0.500      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 53

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas: Acinus                                                                                                                 |
|     Basophilic Focus                                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/98 (1%)    1/99 (1%)    1/99 (1%)    0/99 (0%)   |0/100 (0%)   0/100 (0%)   2/99 (2%)    0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     1.2%         1.2%         1.2%         0.0%        |0.0%         0.0%         2.3%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    1/46 (2%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    2/60 (3%)    0/61 (0%)    |
|FIRST INCIDENCE    |     693          736 (T)      666          ---         |---          ---          737 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.348N     P=0.726      P=0.759      P=0.515N    |P=0.642N     (e)          P=0.243      (e)          |
|POLY 3             |     P=0.345N     P=0.748      P=0.757      P=0.511N    |P=0.643N     (e)          P=0.242      (e)          |
|POLY 1.5           |     P=0.342N     P=0.754      P=0.760      P=0.506N    |P=0.644N     (e)          P=0.239      (e)          |
|POLY 6             |     P=0.349N     P=0.742      P=0.756      P=0.516N    |P=0.638N     (e)          P=0.246      (e)          |
|LOGISTIC REGRESSION|     P=0.341N     P=0.747      P=0.757N     P=0.503N    |(e)          (e)          P=0.243      (e)          |
|COCH-ARM / FISHERS |     P=0.336N     P=0.749N     P=0.749N     P=0.497N    |P=0.634N     (e)          P=0.246      (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas: Acinus                                                                                                                 |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     20/98 (20%)  21/99 (21%)  23/99 (23%)  20/99 (20%) |3/100 (3%)   5/100 (5%)   5/99 (5%)    1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     23.5%        25.5%        27.2%        24.7%       |3.5%         5.6%         5.8%         1.2%         |
|TERMINAL (d)       |     17/57 (30%)  15/46 (33%)  17/47 (36%)  17/48 (35%) |2/59 (3%)    5/68 (7%)    5/60 (8%)    0/61 (0%)    |
|FIRST INCIDENCE    |     670          526          489          656         |655          737 (T)      737 (T)      579          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.528      P=0.257      P=0.169      P=0.350     |P=0.127N     P=0.434      P=0.370      P=0.303N     |
|POLY 3             |     P=0.545N     P=0.451      P=0.347      P=0.495     |P=0.123N     P=0.382      P=0.365      P=0.308N     |
|POLY 1.5           |     P=0.514N     P=0.475      P=0.361      P=0.531     |P=0.126N     P=0.372      P=0.359      P=0.313N     |
|POLY 6             |     P=0.528      P=0.426      P=0.333      P=0.464     |P=0.117N     P=0.395      P=0.374      P=0.297N     |
|LOGISTIC REGRESSION|     P=0.547      P=0.394      P=0.324      P=0.451     |P=0.122N     P=0.406      P=0.382      P=0.301N     |
|COCH-ARM / FISHERS |     P=0.469N     P=0.515      P=0.379      P=0.556N    |P=0.117N     P=0.360      P=0.355      P=0.311N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 54

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas: Artery                                                                                                                 |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/98 (1%)    2/99 (2%)    0/99 (0%)    2/99 (2%)   |0/100 (0%)   0/100 (0%)   1/99 (1%)    0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     1.2%         2.5%         0.0%         2.5%        |0.0%         0.0%         1.2%         0.0%         |
|TERMINAL (d)       |     1/57 (2%)    1/46 (2%)    0/47 (0%)    1/48 (2%)   |0/59 (0%)    0/68 (0%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |     736 (T)      490          ---          721         |---          ---          737 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.440      P=0.448      P=0.538N     P=0.454     |P=0.771N     (e)          P=0.503      (e)          |
|POLY 3             |     P=0.441      P=0.485      P=0.503N     P=0.481     |P=0.771N     (e)          P=0.503      (e)          |
|POLY 1.5           |     P=0.448      P=0.492      P=0.501N     P=0.490     |P=0.771N     (e)          P=0.500      (e)          |
|POLY 6             |     P=0.436      P=0.477      P=0.505N     P=0.473     |P=0.768N     (e)          P=0.507      (e)          |
|LOGISTIC REGRESSION|     P=0.457      P=0.530      (e)          P=0.471     |(e)          (e)          P=0.503      (e)          |
|COCH-ARM / FISHERS |     P=0.458      P=0.504      P=0.497N     P=0.504     |P=0.766N     (e)          P=0.497      (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pineal Gland                                                                                                                     |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/81 (1%)    1/84 (1%)    2/81 (2%)    0/79 (0%)   |0/85 (0%)    0/90 (0%)    0/85 (0%)    0/90 (0%)    |
|POLY-3 ADJUSTED (b)|     1.5%         1.4%         2.9%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     1/43 (2%)    1/41 (2%)    2/37 (5%)    0/35 (0%)   |0/51 (0%)    0/61 (0%)    0/52 (0%)    0/57 (0%)    |
|FIRST INCIDENCE    |     736 (T)      736 (T)      736 (T)      ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.358N     P=0.751      P=0.448      P=0.541N    |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.339N     P=0.757N     P=0.500      P=0.516N    |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.332N     P=0.756N     P=0.499      P=0.512N    |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.344N     P=0.756N     P=0.503      P=0.519N    |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.358N     P=0.751      P=0.448      (e)         |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.324N     P=0.742N     P=0.500      P=0.506N    |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 55

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pineal Gland                                                                                                                     |
|     Mineralization                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     42/81 (52%)  52/84 (62%)  54/81 (67%)  39/79 (49%) |56/85 (66%)  54/90 (60%)  57/85 (67%)  54/90 (60%)  |
|POLY-3 ADJUSTED (b)|     56.2%        68.3%        73.0%        56.6%       |69.9%        63.7%        71.7%        65.3%        |
|TERMINAL (d)       |     21/43 (49%)  25/41 (61%)  27/37 (73%)  23/35 (66%) |35/51 (69%)  40/61 (66%)  39/52 (75%)  38/57 (67%)  |
|FIRST INCIDENCE    |     502          505          520          445         |495          508          556          233          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.290N     P=0.074      P=0.029 *    P=0.403     |P=0.397N     P=0.126N     P=0.514N     P=0.243N     |
|POLY 3             |     P=0.173N     P=0.080      P=0.020 *    P=0.552     |P=0.404N     P=0.242N     P=0.467      P=0.317N     |
|POLY 1.5           |     P=0.129N     P=0.090      P=0.025 *    P=0.516N    |P=0.404N     P=0.246N     P=0.475      P=0.318N     |
|POLY 6             |     P=0.263N     P=0.079      P=0.018 *    P=0.464     |P=0.381N     P=0.242N     P=0.467      P=0.301N     |
|LOGISTIC REGRESSION|     P=0.142N     P=0.107      P=0.035 *    P=0.480N    |P=0.404N     P=0.221N     P=0.566N     P=0.286N     |
|COCH-ARM / FISHERS |     P=0.105N     P=0.126      P=0.039 *    P=0.438N    |P=0.319N     P=0.259N     P=0.500      P=0.259N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pituitary Gland: Pars Distalis                                                                                                   |
|     Angiectasis Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/98 (3%)    2/95 (2%)    4/97 (4%)    2/100 (2%)  |1/99 (1%)    9/99 (9%)    5/98 (5%)    3/98 (3%)    |
|POLY-3 ADJUSTED (b)|     3.6%         2.6%         5.0%         2.5%        |1.2%         10.2%        5.7%         3.6%         |
|TERMINAL (d)       |     2/57 (4%)    1/45 (2%)    4/46 (9%)    1/48 (2%)   |1/59 (2%)    9/67 (13%)   2/60 (3%)    3/61 (5%)    |
|FIRST INCIDENCE    |     701          715          736 (T)      733         |737 (T)      737 (T)      501          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.494N     P=0.571N     P=0.402      P=0.564N    |P=0.295N     P=0.018 *    P=0.117      P=0.318      |
|POLY 3             |     P=0.468N     P=0.538N     P=0.477      P=0.518N    |P=0.293N     P=0.012 *    P=0.113      P=0.301      |
|POLY 1.5           |     P=0.461N     P=0.529N     P=0.484      P=0.507N    |P=0.299N     P=0.012 *    P=0.108      P=0.297      |
|POLY 6             |     P=0.474N     P=0.548N     P=0.470      P=0.527N    |P=0.278N     P=0.013 *    P=0.119      P=0.311      |
|LOGISTIC REGRESSION|     P=0.472N     P=0.552N     P=0.467      P=0.529N    |P=0.299N     P=0.018 *    P=0.101      P=0.318      |
|COCH-ARM / FISHERS |     P=0.450N     P=0.515N     P=0.494      P=0.490N    |P=0.286N     P=0.009 **   P=0.103      P=0.307      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 56

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pituitary Gland: Pars Distalis                                                                                                   |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     8/98 (8%)    6/95 (6%)    6/97 (6%)    16/100 (16%)|21/99 (21%)  21/99 (21%)  19/98 (19%)  28/98 (29%)  |
|POLY-3 ADJUSTED (b)|     9.4%         7.6%         7.4%         19.1%       |24.2%        23.6%        22.0%        32.3%        |
|TERMINAL (d)       |     4/57 (7%)    2/45 (4%)    4/46 (9%)    8/48 (17%)  |16/59 (27%)  19/67 (28%)  17/60 (28%)  20/61 (33%)  |
|FIRST INCIDENCE    |     627          544          606          461         |462          662          673          409          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.005 **   P=0.511N     P=0.500N     P=0.037 *   |P=0.069      P=0.396N     P=0.399N     P=0.198      |
|POLY 3             |     P=0.006 **   P=0.455N     P=0.428N     P=0.053     |P=0.071      P=0.534N     P=0.432N     P=0.152      |
|POLY 1.5           |     P=0.006 **   P=0.440N     P=0.416N     P=0.059     |P=0.066      P=0.550N     P=0.440N     P=0.138      |
|POLY 6             |     P=0.006 **   P=0.473N     P=0.442N     P=0.048 *   |P=0.088      P=0.511N     P=0.421N     P=0.189      |
|LOGISTIC REGRESSION|     P=0.007 **   P=0.415N     P=0.409N     P=0.068     |P=0.061      P=0.488N     P=0.386N     P=0.138      |
|COCH-ARM / FISHERS |     P=0.007 **   P=0.415N     P=0.399N     P=0.070     |P=0.079      P=0.569N     P=0.444N     P=0.152      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pituitary Gland: Pars Distalis                                                                                                   |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     11/98 (11%)  15/95 (16%)  9/97 (9%)    14/100 (14%)|10/99 (10%)  9/99 (9%)    6/98 (6%)    6/98 (6%)    |
|POLY-3 ADJUSTED (b)|     12.8%        18.9%        10.8%        16.8%       |11.6%        10.2%        7.0%         7.2%         |
|TERMINAL (d)       |     6/57 (11%)   8/45 (18%)   3/46 (7%)    8/48 (17%)  |6/59 (10%)   9/67 (13%)   6/60 (10%)   5/61 (8%)    |
|FIRST INCIDENCE    |     502          396          405          445         |597          737 (T)      737 (T)      696          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.355      P=0.153      P=0.501N     P=0.231     |P=0.235N     P=0.400N     P=0.202N     P=0.201N     |
|POLY 3             |     P=0.403      P=0.195      P=0.435N     P=0.305     |P=0.248N     P=0.479N     P=0.217N     P=0.235N     |
|POLY 1.5           |     P=0.419      P=0.211      P=0.427N     P=0.325     |P=0.249N     P=0.488N     P=0.220N     P=0.239N     |
|POLY 6             |     P=0.389      P=0.181      P=0.442N     P=0.287     |P=0.237N     P=0.469N     P=0.213N     P=0.221N     |
|LOGISTIC REGRESSION|     P=0.440      P=0.218      P=0.399N     P=0.343     |P=0.232N     P=0.460N     P=0.209N     P=0.228N     |
|COCH-ARM / FISHERS |     P=0.441      P=0.237      P=0.417N     P=0.355     |P=0.226N     P=0.500N     P=0.224N     P=0.224N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 57

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pituitary Gland: Pars Distalis                                                                                                   |
|     Hypertrophy Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/98 (2%)    2/95 (2%)    3/97 (3%)    0/100 (0%)  |0/99 (0%)    0/99 (0%)    0/98 (0%)    1/98 (1%)    |
|POLY-3 ADJUSTED (b)|     2.4%         2.6%         3.7%         0.0%        |0.0%         0.0%         0.0%         1.2%         |
|TERMINAL (d)       |     1/57 (2%)    1/45 (2%)    1/46 (2%)    0/48 (0%)   |0/59 (0%)    0/67 (0%)    0/60 (0%)    1/61 (2%)    |
|FIRST INCIDENCE    |     696          581          682          ---         |---          ---          ---          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.167N     P=0.639      P=0.462      P=0.264N    |P=0.230      (e)          (e)          P=0.507      |
|POLY 3             |     P=0.157N     P=0.664      P=0.482      P=0.247N    |P=0.228      (e)          (e)          P=0.497      |
|POLY 1.5           |     P=0.153N     P=0.670      P=0.487      P=0.242N    |P=0.227      (e)          (e)          P=0.494      |
|POLY 6             |     P=0.161N     P=0.658      P=0.479      P=0.252N    |P=0.231      (e)          (e)          P=0.503      |
|LOGISTIC REGRESSION|     P=0.150N     P=0.680      P=0.482      P=0.250N    |(e)          (e)          (e)          P=0.507      |
|COCH-ARM / FISHERS |     P=0.147N     P=0.678      P=0.495      P=0.244N    |P=0.232      (e)          (e)          P=0.497      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pituitary Gland: Pars Distalis                                                                                                   |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/98 (0%)    0/95 (0%)    0/97 (0%)    0/100 (0%)  |0/99 (0%)    2/99 (2%)    0/98 (0%)    1/98 (1%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         2.2%         0.0%         1.2%         |
|TERMINAL (d)       |     0/57 (0%)    0/45 (0%)    0/46 (0%)    0/48 (0%)   |0/59 (0%)    1/67 (2%)    0/60 (0%)    1/61 (2%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          522          ---          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.653      P=0.255      (e)          P=0.507      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.659      P=0.249      (e)          P=0.497      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.656      P=0.244      (e)          P=0.494      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.667      P=0.255      (e)          P=0.503      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.692      P=0.196      (e)          P=0.507      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.660      P=0.249      (e)          P=0.497      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 58

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pituitary Gland: Pars Distalis                                                                                                   |
|     Pigmentation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/98 (0%)    0/95 (0%)    0/97 (0%)    0/100 (0%)  |2/99 (2%)    1/99 (1%)    0/98 (0%)    2/98 (2%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |2.3%         1.1%         0.0%         2.4%         |
|TERMINAL (d)       |     0/57 (0%)    0/45 (0%)    0/46 (0%)    0/48 (0%)   |1/59 (2%)    1/67 (2%)    0/60 (0%)    1/61 (2%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |680          737 (T)      ---          485          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.447      P=0.460N     P=0.229N     P=0.685N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.444      P=0.487N     P=0.236N     P=0.689      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.444      P=0.493N     P=0.238N     P=0.684      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.449      P=0.480N     P=0.232N     P=0.686N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.479      P=0.483N     P=0.237N     P=0.680N     |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.453      P=0.500N     P=0.251N     P=0.686      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pituitary Gland: Pars Intermedia                                                                                                 |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/98 (3%)    0/95 (0%)    1/97 (1%)    0/100 (0%)  |0/99 (0%)    0/99 (0%)    0/98 (0%)    0/98 (0%)    |
|POLY-3 ADJUSTED (b)|     3.5%         0.0%         1.2%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     2/57 (4%)    0/45 (0%)    0/46 (0%)    0/48 (0%)   |0/59 (0%)    0/67 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     619          ---          724          ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.242N     P=0.160N     P=0.351N     P=0.152N    |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.221N     P=0.138N     P=0.323N     P=0.129N    |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.222N     P=0.134N     P=0.318N     P=0.124N    |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.220N     P=0.142N     P=0.328N     P=0.133N    |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.229N     P=0.132N     P=0.319N     P=0.124N    |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.224N     P=0.129N     P=0.314N     P=0.119N    |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 59

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pituitary Gland: Rathke's Cleft                                                                                                  |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/98 (0%)    1/95 (1%)    1/97 (1%)    0/100 (0%)  |2/99 (2%)    0/99 (0%)    0/98 (0%)    2/98 (2%)    |
|POLY-3 ADJUSTED (b)|     0.0%         1.3%         1.2%         0.0%        |2.3%         0.0%         0.0%         2.4%         |
|TERMINAL (d)       |     0/57 (0%)    0/45 (0%)    0/46 (0%)    0/48 (0%)   |1/59 (2%)    0/67 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          602          694          ---         |565          ---          ---          409          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.513N     P=0.484      P=0.500      (e)         |P=0.304      P=0.221N     P=0.237N     P=0.691N     |
|POLY 3             |     P=0.505N     P=0.484      P=0.492      (e)         |P=0.301      P=0.231N     P=0.237N     P=0.688      |
|POLY 1.5           |     P=0.500N     P=0.488      P=0.494      (e)         |P=0.302      P=0.234N     P=0.239N     P=0.683      |
|POLY 6             |     P=0.510N     P=0.481      P=0.490      (e)         |P=0.303      P=0.227N     P=0.234N     P=0.687N     |
|LOGISTIC REGRESSION|     P=0.485N     P=0.529      P=0.496      (e)         |P=0.445      P=0.264N     P=0.241N     P=0.630N     |
|COCH-ARM / FISHERS |     P=0.492N     P=0.492      P=0.497      (e)         |P=0.311      P=0.249N     P=0.251N     P=0.686      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Preputial Gland                                                                                                                  |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   1/99 (1%)    0/100 (0%)   2/99 (2%)   |                                                    |
|POLY-3 ADJUSTED (b)|     1.2%         1.2%         0.0%         2.5%        |                                                    |
|TERMINAL (d)       |     0/57 (0%)    0/45 (0%)    0/47 (0%)    1/47 (2%)   |                                                    |
|FIRST INCIDENCE    |     729          631          ---          724         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.301      P=0.733      P=0.518N     P=0.461     |                                                    |
|POLY 3             |     P=0.302      P=0.747      P=0.505N     P=0.476     |                                                    |
|POLY 1.5           |     P=0.306      P=0.751      P=0.503N     P=0.484     |                                                    |
|POLY 6             |     P=0.298      P=0.743      P=0.507N     P=0.469     |                                                    |
|LOGISTIC REGRESSION|     P=0.301      P=0.762      P=0.506N     P=0.468     |                                                    |
|COCH-ARM / FISHERS |     P=0.311      P=0.749      P=0.500N     P=0.496     |                                                    |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 60

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Preputial Gland                                                                                                                  |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/100 (4%)   8/99 (8%)    2/100 (2%)   4/99 (4%)   |                                                    |
|POLY-3 ADJUSTED (b)|     4.6%         10.0%        2.4%         5.0%        |                                                    |
|TERMINAL (d)       |     2/57 (4%)    7/45 (16%)   1/47 (2%)    2/47 (4%)   |                                                    |
|FIRST INCIDENCE    |     647          734          687          505         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.408N     P=0.102      P=0.390N     P=0.565     |                                                    |
|POLY 3             |     P=0.392N     P=0.152      P=0.353N     P=0.605     |                                                    |
|POLY 1.5           |     P=0.382N     P=0.163      P=0.348N     P=0.617     |                                                    |
|POLY 6             |     P=0.401N     P=0.139      P=0.357N     P=0.593     |                                                    |
|LOGISTIC REGRESSION|     P=0.392N     P=0.141      P=0.347N     P=0.630     |                                                    |
|COCH-ARM / FISHERS |     P=0.368N     P=0.181      P=0.341N     P=0.634     |                                                    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Preputial Gland                                                                                                                  |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     80/100 (80%) 76/99 (77%)  76/100 (76%) 75/99 (76%) |                                                    |
|POLY-3 ADJUSTED (b)|     84.4%        82.3%        81.7%        80.5%       |                                                    |
|TERMINAL (d)       |     51/57 (90%)  35/45 (78%)  40/47 (85%)  35/47 (75%) |                                                    |
|FIRST INCIDENCE    |     476          329          393          442         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.453      P=0.195      P=0.290      P=0.300     |                                                    |
|POLY 3             |     P=0.325N     P=0.423N     P=0.374N     P=0.298N    |                                                    |
|POLY 1.5           |     P=0.331N     P=0.403N     P=0.337N     P=0.290N    |                                                    |
|POLY 6             |     P=0.329N     P=0.412N     P=0.419N     P=0.300N    |                                                    |
|LOGISTIC REGRESSION|     P=0.450N     P=0.504N     P=0.385N     P=0.401N    |                                                    |
|COCH-ARM / FISHERS |     P=0.365N     P=0.351N     P=0.304N     P=0.291N    |                                                    |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 61

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Prostate                                                                                                                         |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     48/100 (48%) 57/99 (58%)  34/100 (34%) 47/99 (47%) |                                                    |
|POLY-3 ADJUSTED (b)|     52.8%        64.2%        38.8%        56.0%       |                                                    |
|TERMINAL (d)       |     30/57 (53%)  28/45 (62%)  15/47 (32%)  28/47 (60%) |                                                    |
|FIRST INCIDENCE    |     581          267          557          461         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.519N     P=0.024 *    P=0.156N     P=0.265     |                                                    |
|POLY 3             |     P=0.540N     P=0.072      P=0.038N*    P=0.388     |                                                    |
|POLY 1.5           |     P=0.464N     P=0.086      P=0.034N*    P=0.472     |                                                    |
|POLY 6             |     P=0.464      P=0.061      P=0.043N*    P=0.303     |                                                    |
|LOGISTIC REGRESSION|     P=0.446N     P=0.072      P=0.038N*    P=0.411     |                                                    |
|COCH-ARM / FISHERS |     P=0.367N     P=0.113      P=0.031N*    P=0.527N    |                                                    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Prostate                                                                                                                         |
|     Inflammation Acute                                                                                                          |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/100 (4%)   7/99 (7%)    15/100 (15%) 7/99 (7%)   |                                                    |
|POLY-3 ADJUSTED (b)|     4.6%         8.6%         17.2%        8.4%        |                                                    |
|TERMINAL (d)       |     2/57 (4%)    2/45 (4%)    5/47 (11%)   1/47 (2%)   |                                                    |
|FIRST INCIDENCE    |     527          647          405          410         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.507      P=0.205      P=0.006 **   P=0.221     |                                                    |
|POLY 3             |     P=0.534      P=0.230      P=0.007 **   P=0.242     |                                                    |
|POLY 1.5           |     P=0.541      P=0.242      P=0.007 **   P=0.250     |                                                    |
|POLY 6             |     P=0.531      P=0.221      P=0.007 **   P=0.237     |                                                    |
|LOGISTIC REGRESSION|     P=0.559N     P=0.272      P=0.009 **   P=0.367     |                                                    |
|COCH-ARM / FISHERS |     P=0.547      P=0.263      P=0.007 **   P=0.263     |                                                    |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 62

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Prostate                                                                                                                         |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     42/100 (42%) 51/99 (52%)  49/100 (49%) 41/99 (41%) |                                                    |
|POLY-3 ADJUSTED (b)|     45.8%        58.6%        53.7%        46.1%       |                                                    |
|TERMINAL (d)       |     20/57 (35%)  30/45 (67%)  27/47 (57%)  15/47 (32%) |                                                    |
|FIRST INCIDENCE    |     476          329          393          477         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.339N     P=0.030 *    P=0.091      P=0.355     |                                                    |
|POLY 3             |     P=0.188N     P=0.053      P=0.174      P=0.543     |                                                    |
|POLY 1.5           |     P=0.195N     P=0.075      P=0.187      P=0.559N    |                                                    |
|POLY 6             |     P=0.163N     P=0.031 *    P=0.153      P=0.538     |                                                    |
|LOGISTIC REGRESSION|     P=0.208N     P=0.084      P=0.193      P=0.522N    |                                                    |
|COCH-ARM / FISHERS |     P=0.196N     P=0.114      P=0.197      P=0.524N    |                                                    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Prostate: Epithelium                                                                                                             |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     10/100 (10%) 7/99 (7%)    5/100 (5%)   9/99 (9%)   |                                                    |
|POLY-3 ADJUSTED (b)|     11.6%        8.7%         5.9%         11.2%       |                                                    |
|TERMINAL (d)       |     9/57 (16%)   6/45 (13%)   4/47 (9%)    7/47 (15%)  |                                                    |
|FIRST INCIDENCE    |     701          612          496          697         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.382      P=0.483N     P=0.227N     P=0.539     |                                                    |
|POLY 3             |     P=0.412      P=0.352N     P=0.147N     P=0.563N    |                                                    |
|POLY 1.5           |     P=0.424      P=0.338N     P=0.145N     P=0.542N    |                                                    |
|POLY 6             |     P=0.403      P=0.367N     P=0.148N     P=0.580N    |                                                    |
|LOGISTIC REGRESSION|     P=0.398      P=0.383N     P=0.154N     P=0.586N    |                                                    |
|COCH-ARM / FISHERS |     P=0.440      P=0.314N     P=0.141N     P=0.509N    |                                                    |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 63

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Salivary Glands: Parotid Gland                                                                                                   |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    2/99 (2%)    0/100 (0%)   2/100 (2%)  |3/100 (3%)   2/99 (2%)    3/100 (3%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     0.0%         2.5%         0.0%         2.5%        |3.5%         2.2%         3.4%         2.4%         |
|TERMINAL (d)       |     0/57 (0%)    2/46 (4%)    0/47 (0%)    2/48 (4%)   |2/59 (3%)    0/68 (0%)    1/60 (2%)    1/61 (2%)    |
|FIRST INCIDENCE    |     ---          736 (T)      ---          736 (T)     |553          631          681          696          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.293      P=0.193      (e)          P=0.202     |P=0.503N     P=0.453N     P=0.641N     P=0.487N     |
|POLY 3             |     P=0.299      P=0.228      (e)          P=0.228     |P=0.519N     P=0.482N     P=0.651N     P=0.505N     |
|POLY 1.5           |     P=0.305      P=0.232      (e)          P=0.233     |P=0.517N     P=0.492N     P=0.656N     P=0.509N     |
|POLY 6             |     P=0.293      P=0.223      (e)          P=0.223     |P=0.515N     P=0.468N     P=0.643N     P=0.493N     |
|LOGISTIC REGRESSION|     (e)          P=0.193      (e)          P=0.202     |P=0.487N     P=0.553N     P=0.659      P=0.503N     |
|COCH-ARM / FISHERS |     P=0.315      P=0.249      (e)          P=0.251     |P=0.497N     P=0.505N     P=0.659N     P=0.500N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Seminal Vesicle                                                                                                                  |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     84/100 (84%) 79/99 (80%)  86/100 (86%) 78/99 (79%) |                                                    |
|POLY-3 ADJUSTED (b)|     87.9%        84.9%        89.2%        85.5%       |                                                    |
|TERMINAL (d)       |     49/57 (86%)  37/45 (82%)  41/47 (87%)  40/47 (85%) |                                                    |
|FIRST INCIDENCE    |     549          267          393          442         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.516      P=0.223      P=0.127      P=0.320     |                                                    |
|POLY 3             |     P=0.428N     P=0.340N     P=0.479      P=0.386N    |                                                    |
|POLY 1.5           |     P=0.338N     P=0.300N     P=0.471      P=0.298N    |                                                    |
|POLY 6             |     P=0.528N     P=0.415N     P=0.465      P=0.505N    |                                                    |
|LOGISTIC REGRESSION|     P=0.326N     P=0.417N     P=0.348      P=0.427N    |                                                    |
|COCH-ARM / FISHERS |     P=0.244N     P=0.279N     P=0.422      P=0.223N    |                                                    |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 64

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Skin                                                                                                                             |
|     Cyst Epithelial Inclusion                                                                                                   |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    4/100 (4%)   3/100 (3%)   3/100 (3%)  |0/100 (0%)   0/100 (0%)   1/100 (1%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         4.9%         3.6%         3.7%        |0.0%         0.0%         1.1%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    1/46 (2%)    2/47 (4%)    3/48 (6%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          639          586          736 (T)     |---          ---          647          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.409      P=0.050      P=0.099      P=0.093     |P=0.763N     (e)          P=0.517      (e)          |
|POLY 3             |     P=0.411      P=0.059      P=0.119      P=0.113     |P=0.771N     (e)          P=0.505      (e)          |
|POLY 1.5           |     P=0.422      P=0.061      P=0.121      P=0.117     |P=0.771N     (e)          P=0.503      (e)          |
|POLY 6             |     P=0.401      P=0.057      P=0.118      P=0.109     |P=0.769N     (e)          P=0.509      (e)          |
|LOGISTIC REGRESSION|     P=0.423      P=0.061      P=0.124      P=0.093     |P=0.743N     (e)          P=0.501      (e)          |
|COCH-ARM / FISHERS |     P=0.440      P=0.062      P=0.125      P=0.125     |P=0.767N     (e)          P=0.500      (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Skin                                                                                                                             |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    0/100 (0%)   1/100 (1%)   0/100 (0%)  |1/100 (1%)   0/100 (0%)   2/100 (2%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         1.2%         0.0%        |1.2%         0.0%         2.3%         1.2%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    1/47 (2%)    0/48 (0%)   |1/59 (2%)    0/68 (0%)    2/60 (3%)    1/61 (2%)    |
|FIRST INCIDENCE    |     ---          ---          736 (T)      ---         |737 (T)      ---          737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.775N     (e)          P=0.462      (e)         |P=0.587      P=0.472N     P=0.506      P=0.754N     |
|POLY 3             |     P=0.771N     (e)          P=0.497      (e)         |P=0.582      P=0.491N     P=0.508      P=0.759      |
|POLY 1.5           |     P=0.769N     (e)          P=0.499      (e)         |P=0.582      P=0.495N     P=0.504      P=0.757      |
|POLY 6             |     P=0.772N     (e)          P=0.495      (e)         |P=0.586      P=0.486N     P=0.514      P=0.756N     |
|LOGISTIC REGRESSION|     (e)          (e)          P=0.462      (e)         |P=0.587      (e)          P=0.506      P=0.754N     |
|COCH-ARM / FISHERS |     P=0.766N     (e)          P=0.503      (e)         |P=0.597      P=0.500N     P=0.500      P=0.751N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 65

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Skin: Dermis                                                                                                                     |
|     Fibrosis Focal                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    2/100 (2%)   1/100 (1%)   0/100 (0%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     0.0%         2.5%         1.2%         0.0%        |0.0%         0.0%         0.0%         1.2%         |
|TERMINAL (d)       |     0/57 (0%)    2/46 (4%)    1/47 (2%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          736 (T)      736 (T)      ---         |---          ---          ---          735          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.352N     P=0.193      P=0.462      (e)         |P=0.234      (e)          (e)          P=0.510      |
|POLY 3             |     P=0.353N     P=0.229      P=0.497      (e)         |P=0.229      (e)          (e)          P=0.499      |
|POLY 1.5           |     P=0.346N     P=0.233      P=0.499      (e)         |P=0.229      (e)          (e)          P=0.496      |
|POLY 6             |     P=0.358N     P=0.224      P=0.495      (e)         |P=0.231      (e)          (e)          P=0.505      |
|LOGISTIC REGRESSION|     (e)          P=0.193      P=0.462      (e)         |P=0.236      (e)          (e)          P=0.514      |
|COCH-ARM / FISHERS |     P=0.337N     P=0.251      P=0.503      (e)         |P=0.233      (e)          (e)          P=0.500      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Spleen                                                                                                                           |
|     Congestion                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   3/100 (3%)   5/100 (5%)   1/100 (1%)  |0/100 (0%)   1/100 (1%)   1/100 (1%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         3.7%         5.9%         1.2%        |0.0%         1.1%         1.1%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    2/46 (4%)    3/47 (6%)    1/48 (2%)   |0/59 (0%)    1/68 (2%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          729          583          736 (T)     |---          737 (T)      508          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.429N     P=0.093      P=0.026 *    P=0.466     |P=0.512N     P=0.528      P=0.496      (e)          |
|POLY 3             |     P=0.429N     P=0.112      P=0.032 *    P=0.489     |P=0.503N     P=0.509      P=0.506      (e)          |
|POLY 1.5           |     P=0.419N     P=0.116      P=0.033 *    P=0.493     |P=0.506N     P=0.505      P=0.503      (e)          |
|POLY 6             |     P=0.438N     P=0.109      P=0.032 *    P=0.485     |P=0.497N     P=0.514      P=0.510      (e)          |
|LOGISTIC REGRESSION|     P=0.419N     P=0.104      P=0.035 *    P=0.466     |P=0.418N     P=0.528      P=0.609      (e)          |
|COCH-ARM / FISHERS |     P=0.403N     P=0.123      P=0.030 *    P=0.500     |P=0.501N     P=0.500      P=0.500      (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 66

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Spleen                                                                                                                           |
|     Fibrosis                                                                                                                    |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   6/100 (6%)   4/100 (4%)   1/100 (1%)  |0/100 (0%)   0/100 (0%)   1/100 (1%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     1.2%         7.3%         4.8%         1.2%        |0.0%         0.0%         1.1%         0.0%         |
|TERMINAL (d)       |     1/57 (2%)    2/46 (4%)    3/47 (6%)    1/48 (2%)   |0/59 (0%)    0/68 (0%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |     736 (T)      624          701          736 (T)     |---          ---          737 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.182N     P=0.042 *    P=0.139      P=0.723     |P=0.771N     (e)          P=0.503      (e)          |
|POLY 3             |     P=0.178N     P=0.053      P=0.175      P=0.748     |P=0.771N     (e)          P=0.505      (e)          |
|POLY 1.5           |     P=0.171N     P=0.056      P=0.178      P=0.753     |P=0.771N     (e)          P=0.502      (e)          |
|POLY 6             |     P=0.184N     P=0.051      P=0.173      P=0.744     |P=0.769N     (e)          P=0.508      (e)          |
|LOGISTIC REGRESSION|     P=0.171N     P=0.054      P=0.172      P=0.723     |(e)          (e)          P=0.503      (e)          |
|COCH-ARM / FISHERS |     P=0.161N     P=0.059      P=0.184      P=0.751N    |P=0.767N     (e)          P=0.500      (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Spleen                                                                                                                           |
|     Hematopoietic Cell Proliferation                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     14/100 (14%) 12/100 (12%) 13/100 (13%) 15/100 (15%)|15/100 (15%) 15/100 (15%) 20/100 (20%) 13/100 (13%) |
|POLY-3 ADJUSTED (b)|     16.0%        13.9%        15.0%        17.5%       |16.8%        16.5%        22.5%        14.7%        |
|TERMINAL (d)       |     7/57 (12%)   1/46 (2%)    3/47 (6%)    7/48 (15%)  |5/59 (9%)    10/68 (15%)  14/60 (23%)  6/61 (10%)   |
|FIRST INCIDENCE    |     583          329          477          442         |462          589          557          366          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.319      P=0.529N     P=0.562      P=0.373     |P=0.349N     P=0.465N     P=0.266      P=0.409N     |
|POLY 3             |     P=0.341      P=0.431N     P=0.508N     P=0.474     |P=0.334N     P=0.555N     P=0.220      P=0.431N     |
|POLY 1.5           |     P=0.350      P=0.425N     P=0.505N     P=0.485     |P=0.338N     P=0.565N     P=0.222      P=0.439N     |
|POLY 6             |     P=0.334      P=0.439N     P=0.508N     P=0.464     |P=0.319N     P=0.541N     P=0.219      P=0.413N     |
|LOGISTIC REGRESSION|     P=0.410      P=0.335N     P=0.488N     P=0.551     |P=0.264N     P=0.509      P=0.223      P=0.340N     |
|COCH-ARM / FISHERS |     P=0.362      P=0.417N     P=0.500N     P=0.500     |P=0.308N     P=0.578N     P=0.229      P=0.419N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 67

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Spleen                                                                                                                           |
|     Pigmentation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     12/100 (12%) 11/100 (11%) 17/100 (17%) 15/100 (15%)|54/100 (54%) 48/100 (48%) 56/100 (56%) 57/100 (57%) |
|POLY-3 ADJUSTED (b)|     13.7%        13.1%        19.6%        17.8%       |58.5%        50.9%        59.3%        59.8%        |
|TERMINAL (d)       |     7/57 (12%)   6/46 (13%)   8/47 (17%)   7/48 (15%)  |36/59 (61%)  32/68 (47%)  35/60 (58%)  37/61 (61%)  |
|FIRST INCIDENCE    |     476          329          393          494         |494          508          429          129          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.252      P=0.525      P=0.137      P=0.234     |P=0.184      P=0.087N     P=0.520      P=0.460      |
|POLY 3             |     P=0.268      P=0.543N     P=0.195      P=0.293     |P=0.252      P=0.180N     P=0.517      P=0.485      |
|POLY 1.5           |     P=0.279      P=0.526N     P=0.201      P=0.310     |P=0.230      P=0.204N     P=0.483      P=0.437      |
|POLY 6             |     P=0.263      P=0.563N     P=0.191      P=0.281     |P=0.286      P=0.150N     P=0.562N     P=0.551      |
|LOGISTIC REGRESSION|     P=0.315      P=0.450N     P=0.219      P=0.358     |P=0.233      P=0.220N     P=0.450      P=0.408      |
|COCH-ARM / FISHERS |     P=0.299      P=0.500N     P=0.211      P=0.340     |P=0.212      P=0.240N     P=0.444      P=0.388      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Spleen: Capsule                                                                                                                  |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   3/100 (3%)   1/100 (1%)   0/100 (0%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         3.6%         1.2%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    1/47 (2%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          526          736 (T)      ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.247N     P=0.117      P=0.462      (e)         |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.248N     P=0.115      P=0.495      (e)         |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.242N     P=0.117      P=0.497      (e)         |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.252N     P=0.113      P=0.494      (e)         |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.226N     P=0.149      P=0.462      (e)         |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.234N     P=0.123      P=0.500      (e)         |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 68

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Spleen: Lymphoid Follicle                                                                                                        |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   4/100 (4%)   3/100 (3%)   3/100 (3%)  |6/100 (6%)   3/100 (3%)   3/100 (3%)   4/100 (4%)   |
|POLY-3 ADJUSTED (b)|     1.2%         4.8%         3.6%         3.6%        |6.8%         3.3%         3.4%         4.7%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    2/68 (3%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     725          267          489          461         |543          582          617          557          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.514      P=0.168      P=0.297      P=0.293     |P=0.565N     P=0.217N     P=0.229N     P=0.370N     |
|POLY 3             |     P=0.512      P=0.173      P=0.301      P=0.294     |P=0.573N     P=0.237N     P=0.246N     P=0.389N     |
|POLY 1.5           |     P=0.518      P=0.177      P=0.303      P=0.299     |P=0.571N     P=0.242N     P=0.248N     P=0.391N     |
|POLY 6             |     P=0.508      P=0.169      P=0.301      P=0.291     |P=0.568N     P=0.232N     P=0.243N     P=0.379N     |
|LOGISTIC REGRESSION|     P=0.557      P=0.249      P=0.318      P=0.366     |P=0.410N     P=0.347N     P=0.231N     P=0.294N     |
|COCH-ARM / FISHERS |     P=0.529      P=0.184      P=0.311      P=0.311     |P=0.549N     P=0.249N     P=0.249N     P=0.374N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Forestomach                                                                                                             |
|     Edema                                                                                                                       |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/100 (3%)   3/100 (3%)   5/100 (5%)   3/100 (3%)  |3/100 (3%)   0/99 (0%)    1/99 (1%)    3/100 (3%)   |
|POLY-3 ADJUSTED (b)|     3.5%         3.7%         5.9%         3.6%        |3.5%         0.0%         1.2%         3.5%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    2/61 (3%)    |
|FIRST INCIDENCE    |     674          631          604          505         |495          ---          728          696          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.575N     P=0.617      P=0.353      P=0.623     |P=0.258      P=0.112N     P=0.298N     P=0.643N     |
|POLY 3             |     P=0.567N     P=0.639      P=0.348      P=0.641     |P=0.246      P=0.117N     P=0.308N     P=0.652      |
|POLY 1.5           |     P=0.561N     P=0.646      P=0.352      P=0.648     |P=0.248      P=0.120N     P=0.310N     P=0.649      |
|POLY 6             |     P=0.571N     P=0.631      P=0.347      P=0.635     |P=0.247      P=0.114N     P=0.305N     P=0.659N     |
|LOGISTIC REGRESSION|     P=0.537N     P=0.656N     P=0.359      P=0.616N    |P=0.287      P=0.170N     P=0.303N     P=0.644N     |
|COCH-ARM / FISHERS |     P=0.552N     P=0.659N     P=0.360      P=0.659N    |P=0.262      P=0.125N     P=0.314N     P=0.659N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 69

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Forestomach                                                                                                             |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/100 (3%)   2/100 (2%)   4/100 (4%)   4/100 (4%)  |1/100 (1%)   1/99 (1%)    1/99 (1%)    0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     3.5%         2.5%         4.7%         4.9%        |1.2%         1.1%         1.2%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |     527          685          393          516         |598          674          737 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.348      P=0.531N     P=0.473      P=0.460     |P=0.343N     P=0.746N     P=0.754N     P=0.507N     |
|POLY 3             |     P=0.351      P=0.528N     P=0.489      P=0.469     |P=0.344N     P=0.753N     P=0.759N     P=0.502N     |
|POLY 1.5           |     P=0.358      P=0.518N     P=0.494      P=0.481     |P=0.344N     P=0.757N     P=0.760      P=0.504N     |
|POLY 6             |     P=0.347      P=0.540N     P=0.484      P=0.459     |P=0.341N     P=0.747N     P=0.756N     P=0.497N     |
|LOGISTIC REGRESSION|     P=0.391      P=0.465N     P=0.542      P=0.554     |P=0.312N     P=0.721      P=0.758      P=0.451N     |
|COCH-ARM / FISHERS |     P=0.367      P=0.500N     P=0.500      P=0.500     |P=0.335N     P=0.749      P=0.749      P=0.500N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Forestomach                                                                                                             |
|     Ulcer                                                                                                                       |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   2/100 (2%)   2/100 (2%)   3/100 (3%)  |3/100 (3%)   1/99 (1%)    0/99 (0%)    3/100 (3%)   |
|POLY-3 ADJUSTED (b)|     1.2%         2.5%         2.4%         3.7%        |3.5%         1.1%         0.0%         3.5%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    1/48 (2%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    1/61 (2%)    |
|FIRST INCIDENCE    |     647          706          561          664         |553          632          ---          673          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.290      P=0.472      P=0.473      P=0.278     |P=0.320      P=0.283N     P=0.115N     P=0.644N     |
|POLY 3             |     P=0.286      P=0.481      P=0.492      P=0.287     |P=0.310      P=0.297N     P=0.122N     P=0.653      |
|POLY 1.5           |     P=0.292      P=0.488      P=0.495      P=0.295     |P=0.311      P=0.303N     P=0.123N     P=0.650      |
|POLY 6             |     P=0.281      P=0.474      P=0.490      P=0.280     |P=0.312      P=0.290N     P=0.120N     P=0.658N     |
|LOGISTIC REGRESSION|     P=0.298      P=0.493      P=0.515      P=0.298     |P=0.381      P=0.393N     P=0.111N     P=0.643N     |
|COCH-ARM / FISHERS |     P=0.301      P=0.500      P=0.500      P=0.311     |P=0.325      P=0.314N     P=0.125N     P=0.659N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 70

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Forestomach: Epithelium                                                                                                 |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     6/100 (6%)   5/100 (5%)   9/100 (9%)   2/100 (2%)  |7/100 (7%)   2/99 (2%)    0/99 (0%)    3/100 (3%)   |
|POLY-3 ADJUSTED (b)|     6.9%         6.0%         10.5%        2.5%        |7.9%         2.3%         0.0%         3.5%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    1/47 (2%)    0/48 (0%)   |0/59 (0%)    1/68 (2%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     527          526          393          704         |553          674          ---          522          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.120N     P=0.560N     P=0.269      P=0.177N    |P=0.459N     P=0.075N     P=0.010N*    P=0.171N     |
|POLY 3             |     P=0.118N     P=0.536N     P=0.285      P=0.163N    |P=0.455N     P=0.084N     P=0.010N*    P=0.176N     |
|POLY 1.5           |     P=0.110N     P=0.523N     P=0.290      P=0.153N    |P=0.454N     P=0.086N     P=0.010N*    P=0.177N     |
|POLY 6             |     P=0.126N     P=0.550N     P=0.281      P=0.173N    |P=0.450N     P=0.082N     P=0.010N*    P=0.170N     |
|LOGISTIC REGRESSION|     P=0.092N     P=0.458N     P=0.325      P=0.132N    |P=0.272N     P=0.141N     P=0.007N**   P=0.093N     |
|COCH-ARM / FISHERS |     P=0.101N     P=0.500N     P=0.296      P=0.140N    |P=0.440N     P=0.087N     P=0.007N**   P=0.166N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Glandular                                                                                                               |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/100 (3%)   0/100 (0%)   0/100 (0%)   0/100 (0%)  |0/100 (0%)   0/100 (0%)   0/99 (0%)    0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     3.5%         0.0%         0.0%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     649          ---          ---          ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.248N     P=0.153N     P=0.144N     P=0.145N    |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.232N     P=0.132N     P=0.127N     P=0.132N    |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.235N     P=0.128N     P=0.125N     P=0.128N    |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.230N     P=0.136N     P=0.128N     P=0.136N    |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.245N     P=0.130N     P=0.126N     P=0.131N    |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.240N     P=0.123N     P=0.123N     P=0.123N    |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 71

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Glandular                                                                                                               |
|     Edema                                                                                                                       |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   0/100 (0%)   1/100 (1%)   0/100 (0%)  |0/100 (0%)   0/100 (0%)   1/99 (1%)    1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     2.3%         0.0%         1.2%         0.0%        |0.0%         0.0%         1.2%         1.2%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     701          ---          718          ---         |---          ---          728          673          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.345N     P=0.269N     P=0.517N     P=0.264N    |P=0.370      (e)          P=0.506      P=0.511      |
|POLY 3             |     P=0.335N     P=0.251N     P=0.509N     P=0.251N    |P=0.358      (e)          P=0.502      P=0.499      |
|POLY 1.5           |     P=0.335N     P=0.246N     P=0.506N     P=0.246N    |P=0.357      (e)          P=0.500      P=0.497      |
|POLY 6             |     P=0.335N     P=0.255N     P=0.512N     P=0.256N    |P=0.364      (e)          P=0.506      P=0.506      |
|LOGISTIC REGRESSION|     P=0.345N     P=0.255N     P=0.511N     P=0.255N    |P=0.363      (e)          P=0.507      P=0.504      |
|COCH-ARM / FISHERS |     P=0.336N     P=0.249N     P=0.500N     P=0.249N    |P=0.366      (e)          P=0.497      P=0.500      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Glandular                                                                                                               |
|     Erosion Focal                                                                                                               |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     9/100 (9%)   3/100 (3%)   9/100 (9%)   8/100 (8%)  |5/100 (5%)   2/100 (2%)   2/99 (2%)    5/100 (5%)   |
|POLY-3 ADJUSTED (b)|     10.2%        3.6%         10.5%        9.6%        |5.7%         2.2%         2.3%         5.8%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    1/48 (2%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    2/61 (3%)    |
|FIRST INCIDENCE    |     527          581          539          461         |553          611          681          579          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.348      P=0.097N     P=0.570      P=0.560N    |P=0.294      P=0.200N     P=0.209N     P=0.612N     |
|POLY 3             |     P=0.354      P=0.082N     P=0.574      P=0.550N    |P=0.280      P=0.209N     P=0.224N     P=0.615      |
|POLY 1.5           |     P=0.363      P=0.076N     P=0.583      P=0.530N    |P=0.282      P=0.214N     P=0.225N     P=0.611      |
|POLY 6             |     P=0.348      P=0.089N     P=0.566      P=0.570N    |P=0.284      P=0.202N     P=0.221N     P=0.627N     |
|LOGISTIC REGRESSION|     P=0.398      P=0.048N*    P=0.575N     P=0.451N    |P=0.382      P=0.313N     P=0.218N     P=0.585N     |
|COCH-ARM / FISHERS |     P=0.373      P=0.067N     P=0.597N     P=0.500N    |P=0.300      P=0.222N     P=0.227N     P=0.626N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 72

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Glandular: Glands                                                                                                       |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/100 (4%)   6/100 (6%)   1/100 (1%)   3/100 (3%)  |12/100 (12%) 20/100 (20%) 26/99 (26%)  12/100 (12%) |
|POLY-3 ADJUSTED (b)|     4.7%         7.4%         1.2%         3.7%        |13.8%        22.2%        29.8%        13.8%        |
|TERMINAL (d)       |     2/57 (4%)    5/46 (11%)   1/47 (2%)    0/48 (0%)   |7/59 (12%)   16/68 (24%)  22/60 (37%)  8/61 (13%)   |
|FIRST INCIDENCE    |     690          670          736 (T)      664         |597          632          656          485          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.375N     P=0.273      P=0.218N     P=0.545N    |P=0.164N     P=0.172      P=0.013 *    P=0.563N     |
|POLY 3             |     P=0.364N     P=0.340      P=0.190N     P=0.529N    |P=0.147N     P=0.102      P=0.007 **   P=0.584      |
|POLY 1.5           |     P=0.357N     P=0.353      P=0.187N     P=0.518N    |P=0.155N     P=0.096      P=0.007 **   P=0.571      |
|POLY 6             |     P=0.368N     P=0.328      P=0.193N     P=0.538N    |P=0.129N     P=0.111      P=0.007 **   P=0.565N     |
|LOGISTIC REGRESSION|     P=0.368N     P=0.324      P=0.191N     P=0.531N    |P=0.158N     P=0.110      P=0.011 *    P=0.584      |
|COCH-ARM / FISHERS |     P=0.347N     P=0.374      P=0.184N     P=0.500N    |P=0.138N     P=0.088      P=0.008 **   P=0.586N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Testes                                                                                                                           |
|     Mineralization                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/100 (3%)   1/100 (1%)   4/100 (4%)   0/100 (0%)  |                                                    |
|POLY-3 ADJUSTED (b)|     3.5%         1.2%         4.8%         0.0%        |                                                    |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    1/47 (2%)    0/48 (0%)   |                                                    |
|FIRST INCIDENCE    |     647          267          604          ---         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.159N     P=0.349N     P=0.457      P=0.144N    |                                                    |
|POLY 3             |     P=0.158N     P=0.324N     P=0.486      P=0.133N    |                                                    |
|POLY 1.5           |     P=0.154N     P=0.317N     P=0.491      P=0.128N    |                                                    |
|POLY 6             |     P=0.161N     P=0.333N     P=0.482      P=0.138N    |                                                    |
|LOGISTIC REGRESSION|     P=0.140N     P=0.221N     P=0.500      P=0.119N    |                                                    |
|COCH-ARM / FISHERS |     P=0.149N     P=0.311N     P=0.500      P=0.123N    |                                                    |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 73

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Testes: Germinal Epithelium                                                                                                      |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     10/100 (10%) 14/100 (14%) 14/100 (14%) 12/100 (12%)|                                                    |
|POLY-3 ADJUSTED (b)|     11.6%        16.7%        16.5%        14.4%       |                                                    |
|TERMINAL (d)       |     8/57 (14%)   6/46 (13%)   6/47 (13%)   7/48 (15%)  |                                                    |
|FIRST INCIDENCE    |     647          267          405          461         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.530      P=0.150      P=0.170      P=0.286     |                                                    |
|POLY 3             |     P=0.557N     P=0.228      P=0.240      P=0.377     |                                                    |
|POLY 1.5           |     P=0.547N     P=0.239      P=0.247      P=0.390     |                                                    |
|POLY 6             |     P=0.554      P=0.219      P=0.236      P=0.367     |                                                    |
|LOGISTIC REGRESSION|     P=0.541N     P=0.239      P=0.236      P=0.394     |                                                    |
|COCH-ARM / FISHERS |     P=0.530N     P=0.257      P=0.257      P=0.411     |                                                    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Testes: Interstitial Cell                                                                                                        |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     11/100 (11%) 9/100 (9%)   17/100 (17%) 22/100 (22%)|                                                    |
|POLY-3 ADJUSTED (b)|     12.5%        10.7%        18.9%        24.8%       |                                                    |
|TERMINAL (d)       |     6/57 (11%)   3/46 (7%)    3/47 (6%)    7/48 (15%)  |                                                    |
|FIRST INCIDENCE    |     502          466          393          442         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.006 **   P=0.524N     P=0.119      P=0.018 *   |                                                    |
|POLY 3             |     P=0.007 **   P=0.449N     P=0.167      P=0.027 *   |                                                    |
|POLY 1.5           |     P=0.007 **   P=0.434N     P=0.162      P=0.027 *   |                                                    |
|POLY 6             |     P=0.008 **   P=0.466N     P=0.176      P=0.029 *   |                                                    |
|LOGISTIC REGRESSION|     P=0.009 **   P=0.361N     P=0.194      P=0.053     |                                                    |
|COCH-ARM / FISHERS |     P=0.006 **   P=0.407N     P=0.154      P=0.028 *   |                                                    |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 74

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thymus                                                                                                                           |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     58/97 (60%)  46/94 (49%)  63/95 (66%)  62/90 (69%) |51/95 (54%)  48/95 (51%)  47/92 (51%)  48/91 (53%)  |
|POLY-3 ADJUSTED (b)|     65.2%        54.1%        69.8%        73.2%       |57.1%        52.9%        53.1%        56.9%        |
|TERMINAL (d)       |     39/55 (71%)  25/44 (57%)  30/45 (67%)  36/46 (78%) |28/56 (50%)  29/64 (45%)  27/57 (47%)  29/56 (52%)  |
|FIRST INCIDENCE    |     406          267          393          442         |462          508          488          394          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.059      P=0.372N     P=0.085      P=0.076     |P=0.480      P=0.195N     P=0.302N     P=0.397N     |
|POLY 3             |     P=0.026 *    P=0.083N     P=0.303      P=0.152     |P=0.404      P=0.339N     P=0.353N     P=0.555N     |
|POLY 1.5           |     P=0.022 *    P=0.082N     P=0.264      P=0.138     |P=0.401      P=0.360N     P=0.382N     P=0.551      |
|POLY 6             |     P=0.034 *    P=0.084N     P=0.363      P=0.182     |P=0.426      P=0.311N     P=0.319N     P=0.517N     |
|LOGISTIC REGRESSION|     P=0.020 *    P=0.110N     P=0.196      P=0.095     |P=0.519      P=0.431N     P=0.462N     P=0.512N     |
|COCH-ARM / FISHERS |     P=0.021 *    P=0.087N     P=0.216      P=0.126     |P=0.490      P=0.386N     P=0.417N     P=0.508N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thymus                                                                                                                           |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/97 (1%)    2/94 (2%)    1/95 (1%)    0/90 (0%)   |1/95 (1%)    3/95 (3%)    5/92 (5%)    2/91 (2%)    |
|POLY-3 ADJUSTED (b)|     1.2%         2.6%         1.3%         0.0%        |1.2%         3.5%         6.2%         2.6%         |
|TERMINAL (d)       |     1/55 (2%)    2/44 (5%)    1/45 (2%)    0/46 (0%)   |0/56 (0%)    2/64 (3%)    4/57 (7%)    1/56 (2%)    |
|FIRST INCIDENCE    |     736 (T)      736 (T)      736 (T)      ---         |736          590          723          702          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.247N     P=0.422      P=0.716      P=0.536N    |P=0.554N     P=0.344      P=0.113      P=0.514      |
|POLY 3             |     P=0.254N     P=0.471      P=0.750      P=0.525N    |P=0.566N     P=0.327      P=0.106      P=0.485      |
|POLY 1.5           |     P=0.251N     P=0.478      P=0.752      P=0.521N    |P=0.570N     P=0.318      P=0.102      P=0.479      |
|POLY 6             |     P=0.256N     P=0.464      P=0.748      P=0.527N    |P=0.552N     P=0.337      P=0.111      P=0.497      |
|LOGISTIC REGRESSION|     P=0.247N     P=0.422      P=0.716      (e)         |P=0.562N     P=0.307      P=0.112      P=0.499      |
|COCH-ARM / FISHERS |     P=0.245N     P=0.488      P=0.746      P=0.519N    |P=0.552N     P=0.310      P=0.098      P=0.484      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 75

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thymus                                                                                                                           |
|     Hemorrhage                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/97 (2%)    3/94 (3%)    2/95 (2%)    2/90 (2%)   |2/95 (2%)    1/95 (1%)    3/92 (3%)    6/91 (7%)    |
|POLY-3 ADJUSTED (b)|     2.4%         3.8%         2.5%         2.7%        |2.4%         1.2%         3.6%         7.3%         |
|TERMINAL (d)       |     0/55 (0%)    1/44 (2%)    0/45 (0%)    0/46 (0%)   |0/56 (0%)    0/64 (0%)    0/57 (0%)    0/56 (0%)    |
|FIRST INCIDENCE    |     695          267          405          410         |494          563          358          129          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.545N     P=0.464      P=0.689      P=0.677     |P=0.031 *    P=0.481N     P=0.510      P=0.141      |
|POLY 3             |     P=0.576N     P=0.470      P=0.681      P=0.651     |P=0.029 *    P=0.484N     P=0.505      P=0.139      |
|POLY 1.5           |     P=0.571N     P=0.477      P=0.683      P=0.657     |P=0.028 *    P=0.491N     P=0.497      P=0.131      |
|POLY 6             |     P=0.578N     P=0.461      P=0.679      P=0.648     |P=0.031 *    P=0.476N     P=0.516      P=0.152      |
|LOGISTIC REGRESSION|     P=0.531N     P=0.565      P=0.680N     P=0.677N    |P=0.575      P=0.647N     P=0.504      P=0.588      |
|COCH-ARM / FISHERS |     P=0.563N     P=0.485      P=0.682      P=0.661     |P=0.028 *    P=0.500N     P=0.485      P=0.126      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thymus: Epithelial Cell                                                                                                          |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/97 (2%)    3/94 (3%)    3/95 (3%)    6/90 (7%)   |3/95 (3%)    1/95 (1%)    3/92 (3%)    4/91 (4%)    |
|POLY-3 ADJUSTED (b)|     2.4%         3.8%         3.7%         8.2%        |3.7%         1.2%         3.7%         5.2%         |
|TERMINAL (d)       |     1/55 (2%)    0/44 (0%)    1/45 (2%)    6/46 (13%)  |2/56 (4%)    1/64 (2%)    3/57 (5%)    3/56 (5%)    |
|FIRST INCIDENCE    |     725          505          617          736 (T)     |602          737 (T)      737 (T)      702          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.079      P=0.454      P=0.451      P=0.091     |P=0.228      P=0.271N     P=0.650N     P=0.505      |
|POLY 3             |     P=0.066      P=0.472      P=0.482      P=0.101     |P=0.218      P=0.291N     P=0.659      P=0.474      |
|POLY 1.5           |     P=0.070      P=0.477      P=0.485      P=0.106     |P=0.218      P=0.298N     P=0.653      P=0.467      |
|POLY 6             |     P=0.064      P=0.468      P=0.481      P=0.097     |P=0.224      P=0.283N     P=0.655N     P=0.490      |
|LOGISTIC REGRESSION|     P=0.076      P=0.540      P=0.492      P=0.105     |P=0.227      P=0.300N     P=0.659N     P=0.478      |
|COCH-ARM / FISHERS |     P=0.076      P=0.485      P=0.490      P=0.116     |P=0.234      P=0.310N     P=0.643      P=0.476      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 76

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thyroid Gland                                                                                                                    |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/99 (2%)    0/100 (0%)   0/100 (0%)   2/100 (2%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     2.3%         0.0%         0.0%         2.5%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     627          ---          ---          673         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.299      P=0.278N     P=0.269N     P=0.655     |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.315      P=0.249N     P=0.243N     P=0.676     |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.315      P=0.244N     P=0.240N     P=0.684     |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.316      P=0.255N     P=0.246N     P=0.669     |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.316      P=0.234N     P=0.234N     P=0.687N    |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.315      P=0.246N     P=0.246N     P=0.686N    |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thyroid Gland                                                                                                                    |
|     Ultimobranchial Cyst                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    1/100 (1%)   4/100 (4%)   7/100 (7%)  |2/100 (2%)   4/100 (4%)   7/100 (7%)   3/100 (3%)   |
|POLY-3 ADJUSTED (b)|     1.2%         1.2%         4.7%         8.6%        |2.3%         4.5%         8.0%         3.5%         |
|TERMINAL (d)       |     0/57 (0%)    1/46 (2%)    1/47 (2%)    6/48 (13%)  |2/59 (3%)    3/68 (4%)    6/60 (10%)   1/61 (2%)    |
|FIRST INCIDENCE    |     701          736 (T)      393          461         |737 (T)      672          652          522          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.007 **   P=0.731      P=0.171      P=0.023 *   |P=0.521N     P=0.402      P=0.091      P=0.498      |
|POLY 3             |     P=0.007 **   P=0.750      P=0.181      P=0.029 *   |P=0.509N     P=0.361      P=0.091      P=0.504      |
|POLY 1.5           |     P=0.008 **   P=0.755      P=0.183      P=0.032 *   |P=0.516N     P=0.352      P=0.088      P=0.496      |
|POLY 6             |     P=0.007 **   P=0.745      P=0.179      P=0.027 *   |P=0.491N     P=0.375      P=0.096      P=0.520      |
|LOGISTIC REGRESSION|     P=0.009 **   P=0.747      P=0.200      P=0.032 *   |P=0.511N     P=0.378      P=0.097      P=0.530      |
|COCH-ARM / FISHERS |     P=0.009 **   P=0.749N     P=0.187      P=0.033 *   |P=0.500N     P=0.341      P=0.085      P=0.500      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 77

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thyroid Gland: C-Cell                                                                                                            |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    1/100 (1%)   3/100 (3%)   1/100 (1%)  |18/100 (18%) 0/100 (0%)   0/100 (0%)   5/100 (5%)   |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         3.6%         1.2%        |20.7%        0.0%         0.0%         5.9%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    2/47 (4%)    0/48 (0%)   |13/59 (22%)  0/68 (0%)    0/60 (0%)    3/61 (5%)    |
|FIRST INCIDENCE    |     ---          680          621          613         |598          ---          ---          715          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.608      P=0.494      P=0.098      P=0.476     |P=0.230N     P<0.001N**   P<0.001N**   P=0.003N**   |
|POLY 3             |     P=0.613      P=0.492      P=0.119      P=0.491     |P=0.231N     P<0.001N**   P<0.001N**   P=0.004N**   |
|POLY 1.5           |     P=0.620      P=0.495      P=0.121      P=0.495     |P=0.226N     P<0.001N**   P<0.001N**   P=0.004N**   |
|POLY 6             |     P=0.609      P=0.488      P=0.118      P=0.488     |P=0.231N     P<0.001N**   P<0.001N**   P=0.003N**   |
|LOGISTIC REGRESSION|     P=0.632      P=0.504      P=0.122      P=0.528     |P=0.227N     P<0.001N**   P<0.001N**   P=0.003N**   |
|COCH-ARM / FISHERS |     P=0.630      P=0.503      P=0.125      P=0.503     |P=0.215N     P<0.001N**   P<0.001N**   P=0.003N**   |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thyroid Gland: C-Cell                                                                                                            |
|     Hyperplasia Diffuse                                                                                                         |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/99 (4%)    0/100 (0%)   0/100 (0%)   1/100 (1%)  |2/100 (2%)   1/100 (1%)   0/100 (0%)   3/100 (3%)   |
|POLY-3 ADJUSTED (b)|     4.7%         0.0%         0.0%         1.2%        |2.3%         1.1%         0.0%         3.5%         |
|TERMINAL (d)       |     3/57 (5%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |1/59 (2%)    0/68 (0%)    0/60 (0%)    3/61 (5%)    |
|FIRST INCIDENCE    |     661          ---          ---          662         |655          631          ---          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.468N     P=0.091N     P=0.086N     P=0.220N    |P=0.206      P=0.461N     P=0.232N     P=0.515      |
|POLY 3             |     P=0.446N     P=0.070N     P=0.066N     P=0.197N    |P=0.202      P=0.484N     P=0.234N     P=0.496      |
|POLY 1.5           |     P=0.449N     P=0.067N     P=0.065N     P=0.190N    |P=0.203      P=0.491N     P=0.236N     P=0.491      |
|POLY 6             |     P=0.443N     P=0.073N     P=0.067N     P=0.203N    |P=0.203      P=0.475N     P=0.231N     P=0.507      |
|LOGISTIC REGRESSION|     P=0.465N     P=0.073N     P=0.068N     P=0.195N    |P=0.205      P=0.525N     P=0.238N     P=0.508      |
|COCH-ARM / FISHERS |     P=0.454N     P=0.059N     P=0.059N     P=0.181N    |P=0.212      P=0.500N     P=0.249N     P=0.500      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 78

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thyroid Gland: C-Cell                                                                                                            |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     29/99 (29%)  22/100 (22%) 24/100 (24%) 24/100 (24%)|20/100 (20%) 39/100 (39%) 52/100 (52%) 24/100 (24%) |
|POLY-3 ADJUSTED (b)|     33.4%        26.8%        28.1%        28.6%       |23.1%        42.9%        57.4%        27.7%        |
|TERMINAL (d)       |     23/57 (40%)  17/46 (37%)  14/47 (30%)  16/48 (33%) |15/59 (25%)  34/68 (50%)  36/60 (60%)  17/61 (28%)  |
|FIRST INCIDENCE    |     579          602          557          505         |553          563          617          557          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.543N     P=0.419N     P=0.492N     P=0.491N    |P=0.097N     P=0.013 *    P<0.001 **   P=0.357      |
|POLY 3             |     P=0.449N     P=0.215N     P=0.273N     P=0.299N    |P=0.077N     P=0.003 **   P<0.001 **   P=0.297      |
|POLY 1.5           |     P=0.444N     P=0.190N     P=0.262N     P=0.278N    |P=0.086N     P=0.003 **   P<0.001 **   P=0.281      |
|POLY 6             |     P=0.446N     P=0.247N     P=0.281N     P=0.315N    |P=0.056N     P=0.004 **   P<0.001 **   P=0.339      |
|LOGISTIC REGRESSION|     P=0.511N     P=0.243N     P=0.291N     P=0.336N    |P=0.083N     P=0.005 **   P<0.001 **   P=0.308      |
|COCH-ARM / FISHERS |     P=0.435N     P=0.155N     P=0.247N     P=0.247N    |P=0.072N     P=0.003 **   P<0.001 **   P=0.304      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thyroid Gland: Follicle                                                                                                          |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/99 (3%)    2/100 (2%)   5/100 (5%)   2/100 (2%)  |1/100 (1%)   0/100 (0%)   1/100 (1%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     3.5%         2.5%         5.9%         2.5%        |1.2%         0.0%         1.1%         1.2%         |
|TERMINAL (d)       |     3/57 (5%)    1/46 (2%)    2/47 (4%)    0/48 (0%)   |1/59 (2%)    0/68 (0%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |     736 (T)      670          583          662         |737 (T)      ---          737 (T)      579          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.468N     P=0.583N     P=0.294      P=0.553N    |P=0.544      P=0.472N     P=0.757N     P=0.759      |
|POLY 3             |     P=0.457N     P=0.519N     P=0.355      P=0.520N    |P=0.545      P=0.491N     P=0.755N     P=0.760N     |
|POLY 1.5           |     P=0.450N     P=0.510N     P=0.358      P=0.510N    |P=0.545      P=0.495N     P=0.758N     P=0.757      |
|POLY 6             |     P=0.461N     P=0.527N     P=0.354      P=0.527N    |P=0.549      P=0.486N     P=0.752N     P=0.753N     |
|LOGISTIC REGRESSION|     P=0.454N     P=0.534N     P=0.352      P=0.527N    |P=0.565      (e)          P=0.757N     P=0.752N     |
|COCH-ARM / FISHERS |     P=0.440N     P=0.495N     P=0.366      P=0.495N    |P=0.557      P=0.500N     P=0.751N     P=0.751N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 79

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thyroid Gland: Follicular Cell                                                                                                   |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    0/100 (0%)   2/100 (2%)   1/100 (1%)  |1/100 (1%)   0/100 (0%)   0/100 (0%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     1.2%         0.0%         2.4%         1.2%        |1.2%         0.0%         0.0%         1.2%         |
|TERMINAL (d)       |     1/57 (2%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |1/59 (2%)    0/68 (0%)    0/60 (0%)    1/61 (2%)    |
|FIRST INCIDENCE    |     736 (T)      ---          489          733         |737 (T)      ---          ---          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.582      P=0.543N     P=0.475      P=0.724     |P=0.493      P=0.472N     P=0.497N     P=0.754N     |
|POLY 3             |     P=0.589      P=0.509N     P=0.497      P=0.750     |P=0.489      P=0.491N     P=0.495N     P=0.759      |
|POLY 1.5           |     P=0.593      P=0.505N     P=0.500      P=0.755     |P=0.491      P=0.495N     P=0.498N     P=0.757      |
|POLY 6             |     P=0.586      P=0.513N     P=0.496      P=0.745     |P=0.490      P=0.486N     P=0.492N     P=0.756N     |
|LOGISTIC REGRESSION|     P=0.605      (e)          P=0.520      P=0.744     |P=0.493      (e)          (e)          P=0.754N     |
|COCH-ARM / FISHERS |     P=0.599      P=0.497N     P=0.504      P=0.749N    |P=0.501      P=0.500N     P=0.500N     P=0.751N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Trachea                                                                                                                          |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     11/100 (11%) 13/100 (13%) 15/100 (15%) 3/100 (3%)  |6/100 (6%)   1/100 (1%)   8/100 (8%)   7/100 (7%)   |
|POLY-3 ADJUSTED (b)|     12.7%        15.9%        17.8%        3.7%        |7.0%         1.1%         9.1%         8.2%         |
|TERMINAL (d)       |     8/57 (14%)   10/46 (22%)  10/47 (21%)  3/48 (6%)   |4/59 (7%)    0/68 (0%)    6/60 (10%)   5/61 (8%)    |
|FIRST INCIDENCE    |     617          670          652          736 (T)     |646          727          694          667          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.010N*    P=0.246      P=0.154      P=0.050N    |P=0.192      P=0.046N*    P=0.413      P=0.532      |
|POLY 3             |     P=0.009N**   P=0.355      P=0.234      P=0.033N*   |P=0.175      P=0.054N     P=0.404      P=0.493      |
|POLY 1.5           |     P=0.008N**   P=0.377      P=0.246      P=0.029N*   |P=0.176      P=0.057N     P=0.397      P=0.486      |
|POLY 6             |     P=0.009N**   P=0.331      P=0.224      P=0.036N*   |P=0.180      P=0.051N     P=0.414      P=0.513      |
|LOGISTIC REGRESSION|     P=0.008N**   P=0.334      P=0.233      P=0.035N*   |P=0.190      P=0.054N     P=0.421      P=0.509      |
|COCH-ARM / FISHERS |     P=0.007N**   P=0.414      P=0.264      P=0.024N*   |P=0.198      P=0.059N     P=0.391      P=0.500      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 80

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Urinary Bladder                                                                                                                  |
|     Edema                                                                                                                       |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/99 (2%)    0/96 (0%)    1/100 (1%)   0/100 (0%)  |1/99 (1%)    0/97 (0%)    0/99 (0%)    1/99 (1%)    |
|POLY-3 ADJUSTED (b)|     2.3%         0.0%         1.2%         0.0%        |1.2%         0.0%         0.0%         1.2%         |
|TERMINAL (d)       |     1/57 (2%)    0/44 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/67 (0%)    0/60 (0%)    1/61 (2%)    |
|FIRST INCIDENCE    |     527          ---          729          ---         |674          ---          ---          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.348N     P=0.273N     P=0.537N     P=0.270N    |P=0.497      P=0.479N     P=0.484N     P=0.751N     |
|POLY 3             |     P=0.329N     P=0.260N     P=0.508N     P=0.251N    |P=0.491      P=0.496N     P=0.496N     P=0.758      |
|POLY 1.5           |     P=0.329N     P=0.255N     P=0.503N     P=0.245N    |P=0.493      P=0.499N     P=0.498N     P=0.756      |
|POLY 6             |     P=0.328N     P=0.266N     P=0.512N     P=0.256N    |P=0.491      P=0.491N     P=0.494N     P=0.758N     |
|LOGISTIC REGRESSION|     P=0.327N     P=0.216N     P=0.487N     P=0.212N    |P=0.497      P=0.519N     P=0.501N     P=0.759      |
|COCH-ARM / FISHERS |     P=0.330N     P=0.256N     P=0.496N     P=0.246N    |P=0.503      P=0.505N     P=0.500N     P=0.751N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Urinary Bladder                                                                                                                  |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/99 (4%)    6/96 (6%)    3/100 (3%)   6/100 (6%)  |10/99 (10%)  9/97 (9%)    9/99 (9%)    5/99 (5%)    |
|POLY-3 ADJUSTED (b)|     4.7%         7.7%         3.6%         7.4%        |11.8%        10.3%        10.3%        5.9%         |
|TERMINAL (d)       |     4/57 (7%)    4/44 (9%)    2/47 (4%)    6/48 (13%)  |9/59 (15%)   7/67 (10%)   8/60 (13%)   3/61 (5%)    |
|FIRST INCIDENCE    |     736 (T)      624          653          736 (T)     |710          641          652          557          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.356      P=0.246      P=0.590N     P=0.269     |P=0.126N     P=0.389N     P=0.481N     P=0.126N     |
|POLY 3             |     P=0.376      P=0.322      P=0.507N     P=0.344     |P=0.125N     P=0.474N     P=0.479N     P=0.140N     |
|POLY 1.5           |     P=0.387      P=0.334      P=0.502N     P=0.358     |P=0.127N     P=0.494N     P=0.490N     P=0.147N     |
|POLY 6             |     P=0.366      P=0.312      P=0.509N     P=0.331     |P=0.117N     P=0.447N     P=0.462N     P=0.125N     |
|LOGISTIC REGRESSION|     P=0.374      P=0.301      P=0.513N     P=0.269     |P=0.119N     P=0.439N     P=0.455N     P=0.135N     |
|COCH-ARM / FISHERS |     P=0.403      P=0.355      P=0.494N     P=0.380     |P=0.113N     P=0.519N     P=0.500N     P=0.141N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 81

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Urinary Bladder                                                                                                                  |
|     Inflammation Acute                                                                                                          |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    0/96 (0%)    3/100 (3%)   0/100 (0%)  |0/99 (0%)    0/97 (0%)    0/99 (0%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         3.5%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/44 (0%)    0/47 (0%)    0/48 (0%)   |0/59 (0%)    0/67 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          ---          405          ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.564N     (e)          P=0.120      (e)         |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.560N     (e)          P=0.123      (e)         |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.555N     (e)          P=0.123      (e)         |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.564N     (e)          P=0.123      (e)         |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.583N     (e)          P=0.110      (e)         |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.549N     (e)          P=0.125      (e)         |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Urinary Bladder                                                                                                                  |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/99 (2%)    1/96 (1%)    0/100 (0%)   1/100 (1%)  |1/99 (1%)    2/97 (2%)    1/99 (1%)    1/99 (1%)    |
|POLY-3 ADJUSTED (b)|     2.3%         1.3%         0.0%         1.2%        |1.2%         2.3%         1.2%         1.2%         |
|TERMINAL (d)       |     0/57 (0%)    1/44 (2%)    0/47 (0%)    1/48 (2%)   |1/59 (2%)    1/67 (2%)    1/60 (2%)    1/61 (2%)    |
|FIRST INCIDENCE    |     579          736 (T)      ---          736 (T)     |737 (T)      722          737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.612N     P=0.551N     P=0.253N     P=0.543N    |P=0.551N     P=0.541      P=0.757N     P=0.754N     |
|POLY 3             |     P=0.592N     P=0.534N     P=0.244N     P=0.520N    |P=0.548N     P=0.508      P=0.756N     P=0.758      |
|POLY 1.5           |     P=0.591N     P=0.525N     P=0.241N     P=0.510N    |P=0.550N     P=0.502      P=0.758N     P=0.756      |
|POLY 6             |     P=0.593N     P=0.545N     P=0.247N     P=0.529N    |P=0.542N     P=0.518      P=0.752N     P=0.757N     |
|LOGISTIC REGRESSION|     P=0.587N     P=0.487N     P=0.223N     P=0.474N    |P=0.536N     P=0.529      P=0.757N     P=0.754N     |
|COCH-ARM / FISHERS |     P=0.589N     P=0.512N     P=0.246N     P=0.496N    |P=0.541N     P=0.492      P=0.751N     P=0.751N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 82

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Urinary Bladder: Transitional Epithelium                                                                                         |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    0/96 (0%)    1/100 (1%)   0/100 (0%)  |2/99 (2%)    1/97 (1%)    0/99 (0%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     1.2%         0.0%         1.2%         0.0%        |2.4%         1.2%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/44 (0%)    0/47 (0%)    0/48 (0%)   |2/59 (3%)    1/67 (2%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     579          ---          724          ---         |737 (T)      737 (T)      ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.511N     P=0.513N     P=0.755      P=0.525N    |P=0.246N     P=0.456N     P=0.235N     P=0.232N     |
|POLY 3             |     P=0.495N     P=0.519N     P=0.756      P=0.511N    |P=0.247N     P=0.492N     P=0.234N     P=0.241N     |
|POLY 1.5           |     P=0.495N     P=0.514N     P=0.758      P=0.506N    |P=0.245N     P=0.499N     P=0.236N     P=0.243N     |
|POLY 6             |     P=0.496N     P=0.524N     P=0.754      P=0.515N    |P=0.247N     P=0.483N     P=0.230N     P=0.234N     |
|LOGISTIC REGRESSION|     P=0.488N     P=0.458N     P=0.751N     P=0.468N    |P=0.246N     P=0.456N     (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.494N     P=0.508N     P=0.749N     P=0.497N    |P=0.239N     P=0.508N     P=0.249N     P=0.249N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Uterus                                                                                                                           |
|     Hydrometra                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |9/100 (9%)   10/100 (10%) 8/100 (8%)   7/100 (7%)   |
|POLY-3 ADJUSTED (b)|                                                        |10.4%        11.1%        9.0%         8.0%         |
|TERMINAL (d)       |                                                        |7/59 (12%)   8/68 (12%)   5/60 (8%)    3/61 (5%)    |
|FIRST INCIDENCE    |                                                        |462          508          358          129          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.327N     P=0.579N     P=0.479N     P=0.382N     |
|POLY 3             |                                                        |P=0.310N     P=0.540      P=0.479N     P=0.388N     |
|POLY 1.5           |                                                        |P=0.313N     P=0.523      P=0.489N     P=0.399N     |
|POLY 6             |                                                        |P=0.297N     P=0.564      P=0.465N     P=0.366N     |
|LOGISTIC REGRESSION|                                                        |P=0.203N     P=0.501      P=0.506N     P=0.293N     |
|COCH-ARM / FISHERS |                                                        |P=0.301N     P=0.500      P=0.500N     P=0.398N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 83

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Uterus                                                                                                                           |
|     Pigmentation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |2/100 (2%)   0/100 (0%)   1/100 (1%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|                                                        |2.3%         0.0%         1.1%         1.2%         |
|TERMINAL (d)       |                                                        |1/59 (2%)    0/68 (0%)    1/60 (2%)    1/61 (2%)    |
|FIRST INCIDENCE    |                                                        |565          ---          737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.676      P=0.220N     P=0.495N     P=0.499N     |
|POLY 3             |                                                        |P=0.672      P=0.230N     P=0.494N     P=0.504N     |
|POLY 1.5           |                                                        |P=0.674      P=0.234N     P=0.497N     P=0.507N     |
|POLY 6             |                                                        |P=0.674      P=0.225N     P=0.490N     P=0.496N     |
|LOGISTIC REGRESSION|                                                        |P=0.687N     P=0.267N     P=0.503N     P=0.497N     |
|COCH-ARM / FISHERS |                                                        |P=0.686N     P=0.249N     P=0.500N     P=0.500N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Uterus: Cervix                                                                                                                   |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |2/100 (2%)   0/100 (0%)   1/100 (1%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|                                                        |2.3%         0.0%         1.1%         1.2%         |
|TERMINAL (d)       |                                                        |2/59 (3%)    0/68 (0%)    1/60 (2%)    1/61 (2%)    |
|FIRST INCIDENCE    |                                                        |737 (T)      ---          737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.679      P=0.208N     P=0.494N     P=0.488N     |
|POLY 3             |                                                        |P=0.672      P=0.228N     P=0.492N     P=0.502N     |
|POLY 1.5           |                                                        |P=0.674      P=0.233N     P=0.496N     P=0.506N     |
|POLY 6             |                                                        |P=0.674      P=0.223N     P=0.486N     P=0.492N     |
|LOGISTIC REGRESSION|                                                        |P=0.679      (e)          P=0.494N     P=0.488N     |
|COCH-ARM / FISHERS |                                                        |P=0.686N     P=0.249N     P=0.500N     P=0.500N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 84

Statistical Analysis of Non-neoplastic Lesions in       Rats(FISCHER 344)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 105 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Uterus: Endometrium                                                                                                              |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |3/100 (3%)   3/100 (3%)   4/100 (4%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|                                                        |3.5%         3.4%         4.5%         1.2%         |
|TERMINAL (d)       |                                                        |3/59 (5%)    2/68 (3%)    3/60 (5%)    1/61 (2%)    |
|FIRST INCIDENCE    |                                                        |737 (T)      722          488          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.220N     P=0.597N     P=0.507      P=0.295N     |
|POLY 3             |                                                        |P=0.220N     P=0.639N     P=0.517      P=0.309N     |
|POLY 1.5           |                                                        |P=0.221N     P=0.648N     P=0.509      P=0.313N     |
|POLY 6             |                                                        |P=0.214N     P=0.627N     P=0.528      P=0.298N     |
|LOGISTIC REGRESSION|                                                        |P=0.216N     P=0.608N     P=0.504      P=0.295N     |
|COCH-ARM / FISHERS |                                                        |P=0.207N     P=0.659N     P=0.500      P=0.311N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Uterus: Endometrium                                                                                                              |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |1/100 (1%)   3/100 (3%)   3/100 (3%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|                                                        |1.2%         3.4%         3.4%         2.3%         |
|TERMINAL (d)       |                                                        |1/59 (2%)    3/68 (4%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |                                                        |737 (T)      737 (T)      728          366          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.607N     P=0.358      P=0.317      P=0.496      |
|POLY 3             |                                                        |P=0.598N     P=0.323      P=0.315      P=0.505      |
|POLY 1.5           |                                                        |P=0.603N     P=0.316      P=0.311      P=0.499      |
|POLY 6             |                                                        |P=0.586N     P=0.333      P=0.321      P=0.516      |
|LOGISTIC REGRESSION|                                                        |P=0.522N     P=0.358      P=0.322      P=0.729      |
|COCH-ARM / FISHERS |                                                        |P=0.597N     P=0.311      P=0.311      P=0.500      |
|=================================================================================================================================|

(a)  Number of tumor-bearing animals /  number of animals examined at site.
(b)  Poly-3 adjusted lifetime tumor incidence.
(d)  Observed incidence at terminal kill.
(f)  Beneath the control incidence are the P-values associated with the trend 
test.  Beneath the dosed group incidence are the P-values corresponding to 
pairwise comparisons between the controls and that dosed group.  The life
table analysis regards tumors in animals dying prior to  terminal kill as
 being (directly or indirectly) the cause of death.
Logistic regression is an alternative
 method for analyzing the incidence of non-fatal tumors. The Cochran-Armitage
and Fishers exact tests compare directly the overall incidence rates
For all tests a negative trend is indicated by N
(e)  Value of Statistic cannot be computed.
(I)  Interim sacrifice
(T)  Terminal sacrifice
#   Tumor rates based on number of animals necropsied.
*   To the right of any statistical result, indicates significance at (P<=0.05).
**  To the right of any statistical result, indicates significance at (P<=0.01).