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TDMS Study 89029-05 Pathology Tables

NTP                                        STATISTICAL ANALYSIS OF PRIMARY TUMORS                              REPORT: PEIRPT08
LAB: I. I. T. Research Inst                               MAGNETIC FIELDS (EMF)                                DATE: 01/28/98

EXPERIMENT: 89029 TEST: 05                                                                                     TIME: 10:35:17
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
                 

Rats(FISCHER 344)
-----------------------------
FOR ALL DOSES THE TUMOR RATES IN THE FOLLOWING TISSUES/ORGANS ARE BASED ON NUMBER OF TISSUES EXAMINED.
IN OTHER TISSUES/ORGANS, RATES ARE BASED ON NUMBER OF ANIMALS NECROPSIED.

                                                 ----------------
                                                 Adrenal Gland
                                                 Adrenal Medulla
                                                 Bone Marrow
                                                 Brain
                                                 Clitoral Gland
                                                 Clitoral/Preputial Gland
                                                 Epididymis
                                                 Heart
                                                 Islets, Pancreatic
                                                 Kidney
                                                 Liver
                                                 Lung
                                                 Nose
                                                 Ovary
                                                 Pancreas
                                                 Parathyroid Gland
                                                 Pituitary Gland
                                                 Preputial Gland
                                                 Prostate
                                                 Salivary Glands
                                                 Spleen
                                                 Testes
                                                 Thymus
                                                 Thyroid Gland
                                                 Urinary Bladder
NTP                                        STATISTICAL ANALYSIS OF PRIMARY TUMORS                              REPORT: PEIRPT08   
LAB: I. I. T. Research Inst                               MAGNETIC FIELDS (EMF)                                DATE: 01/28/98     
EXPERIMENT: 89029 TEST: 05                                                                                     TIME: 10:35:17     
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
-----                                 ----------
Clitoral/Preputial Gland               Carcinoma
Kidney: Renal Tubule                   Carcinoma or Adenoma
Skin                                   Basal Cell Adenoma, Basosquamous Tumor Benign, or Trichoepithelioma

Basal Cell Carcinoma, Basal Cell Adenoma, Basosquamous Tumor (benign, malignant or NOS), or Trichoepithelioma

Basal or Sq. Cell Carcinoma, Carcinoma, Basosq. Tumor (M or B), Basal Cell Adenoma, Adenoma, Papilloma, Sq Papilloma, Keratoacanthom
a, Trichoepitheliom
                                       Trichoepithelioma
Thyroid Gland: C-Cell                  Adenoma
                                       Carcinoma
                                       Carcinoma or Adenoma
===============================================================
Female Rats
------------
Organ                                  Morphology
-----                                  ----------
Adrenal Medulla                        Pheochromocytoma Benign
                                       Pheochromocytoma: Benign, Complex, Malignant, NOS
Pituitary Gland: Pars Distalis or Unspecified Site
                                       Carcinoma or Adenoma
Skin                                   Fibroma
All Organs                             Benign Tumors
                                       Malignant and Benign Tumors
===============================================================
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 1
                     Statistical Analysis of Primary Tumors 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                                                                                                                   |
|     Adenoma                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    3/100 (3%)   1/100 (1%)   1/100 (1%)  |6/100 (6%)   2/100 (2%)   3/100 (3%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     0.0%         3.7%         1.2%         1.2%        |7.0%         2.2%         3.4%         1.2%         |
|TERMINAL (d)       |     0/57 (0%)    2/46 (4%)    1/47 (2%)    1/48 (2%)   |4/59 (7%)    2/68 (3%)    3/60 (5%)    1/61 (2%)    |
|FIRST INCIDENCE    |     ---          639          736 (T)      736 (T)     |597          737 (T)      737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.566N     P=0.093      P=0.462      P=0.466     |P=0.136N     P=0.106N     P=0.236N     P=0.059N     |
|POLY 3             |     P=0.566N     P=0.113      P=0.496      P=0.489     |P=0.139N     P=0.127N     P=0.240N     P=0.062N     |
|POLY 1.5           |     P=0.557N     P=0.117      P=0.498      P=0.494     |P=0.138N     P=0.132N     P=0.244N     P=0.064N     |
|POLY 6             |     P=0.573N     P=0.110      P=0.494      P=0.485     |P=0.137N     P=0.120N     P=0.234N     P=0.058N     |
|LOGISTIC REGRESSION|     P=0.559N     P=0.115      P=0.462      P=0.466     |P=0.131N     P=0.126N     P=0.233N     P=0.063N     |
|COCH-ARM / FISHERS |     P=0.543N     P=0.125      P=0.503      P=0.503     |P=0.127N     P=0.140N     P=0.249N     P=0.059N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Medulla                                                                                                                  |
|     Pheochromocytoma Benign                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     24/98 (24%)  22/93 (24%)  21/100 (21%) 23/100 (23%)|7/96 (7%)    8/94 (9%)    4/94 (4%)    2/98 (2%)    |
|POLY-3 ADJUSTED (b)|     27.8%        28.3%        24.5%        27.8%       |8.5%         9.5%         4.8%         2.4%         |
|TERMINAL (d)       |     17/57 (30%)  9/43 (21%)   10/47 (21%)  14/48 (29%) |6/56 (11%)   6/63 (10%)   0/56 (0%)    1/60 (2%)    |
|FIRST INCIDENCE    |     619          505          617          488         |655          590          648          715          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.465      P=0.418      P=0.554N     P=0.419     |P=0.046N*    P=0.586      P=0.256N     P=0.071N     |
|POLY 3             |     P=0.529      P=0.538      P=0.379N     P=0.567     |P=0.045N*    P=0.521      P=0.263N     P=0.081N     |
|POLY 1.5           |     P=0.536N     P=0.567      P=0.364N     P=0.529N    |P=0.046N*    P=0.504      P=0.272N     P=0.084N     |
|POLY 6             |     P=0.497      P=0.515      P=0.386N     P=0.529     |P=0.042N*    P=0.544      P=0.250N     P=0.074N     |
|LOGISTIC REGRESSION|     P=0.533      P=0.513      P=0.389N     P=0.544     |P=0.044N*    P=0.519      P=0.269N     P=0.071N     |
|COCH-ARM / FISHERS |     P=0.498N     P=0.514N     P=0.339N     P=0.468N    |P=0.041N*    P=0.483      P=0.280N     P=0.080N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 2
                     Statistical Analysis of Primary Tumors 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                                                                                                                  |
|     Pheochromocytoma Malignant                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/98 (2%)    2/93 (2%)    0/100 (0%)   0/100 (0%)  |0/96 (0%)    1/94 (1%)    1/94 (1%)    0/98 (0%)    |
|POLY-3 ADJUSTED (b)|     2.4%         2.7%         0.0%         0.0%        |0.0%         1.2%         1.2%         0.0%         |
|TERMINAL (d)       |     2/57 (4%)    2/43 (5%)    0/47 (0%)    0/48 (0%)   |0/56 (0%)    0/63 (0%)    0/56 (0%)    0/60 (0%)    |
|FIRST INCIDENCE    |     736 (T)      736 (T)      ---          ---         |---          583          647          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.171N     P=0.589      P=0.282N     P=0.277N    |P=0.507N     P=0.509      P=0.517      (e)          |
|POLY 3             |     P=0.163N     P=0.649      P=0.241N     P=0.248N    |P=0.495N     P=0.505      P=0.501      (e)          |
|POLY 1.5           |     P=0.161N     P=0.658      P=0.238N     P=0.243N    |P=0.497N     P=0.501      P=0.498      (e)          |
|POLY 6             |     P=0.164N     P=0.639      P=0.243N     P=0.253N    |P=0.488N     P=0.511      P=0.505      (e)          |
|LOGISTIC REGRESSION|     P=0.171N     P=0.589      (e)          (e)         |P=0.402N     P=0.433      P=0.499      (e)          |
|COCH-ARM / FISHERS |     P=0.158N     P=0.669      P=0.244N     P=0.244N    |P=0.493N     P=0.495      P=0.495      (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Medulla                                                                                                                  |
|     Pheochromocytoma: Benign, Complex, Malignant, NOS                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     26/98 (27%)  23/93 (25%)  21/100 (21%) 23/100 (23%)|7/96 (7%)    9/94 (10%)   5/94 (5%)    2/98 (2%)    |
|POLY-3 ADJUSTED (b)|     30.1%        29.6%        24.5%        27.8%       |8.5%         10.6%        6.0%         2.4%         |
|TERMINAL (d)       |     19/57 (33%)  10/43 (23%)  10/47 (21%)  14/48 (29%) |6/56 (11%)   6/63 (10%)   0/56 (0%)    1/60 (2%)    |
|FIRST INCIDENCE    |     619          505          617          488         |655          583          647          715          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.525N     P=0.456      P=0.438N     P=0.537     |P=0.035N*    P=0.483      P=0.364N     P=0.071N     |
|POLY 3             |     P=0.457N     P=0.542N     P=0.258N     P=0.436N    |P=0.033N*    P=0.423      P=0.376N     P=0.081N     |
|POLY 1.5           |     P=0.429N     P=0.511N     P=0.247N     P=0.397N    |P=0.034N*    P=0.404      P=0.387N     P=0.084N     |
|POLY 6             |     P=0.489N     P=0.568N     P=0.263N     P=0.476N    |P=0.031N*    P=0.449      P=0.358N     P=0.074N     |
|LOGISTIC REGRESSION|     P=0.457N     P=0.560      P=0.271N     P=0.463N    |P=0.032N*    P=0.397      P=0.391N     P=0.071N     |
|COCH-ARM / FISHERS |     P=0.394N     P=0.453N     P=0.227N     P=0.341N    |P=0.030N*    P=0.380      P=0.398N     P=0.080N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 3
                     Statistical Analysis of Primary Tumors 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                                                                                                                            |
|     Granular Cell Tumor Benign                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|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)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Brain                                                                                                                            |
|     Oligodendroglioma, Glioma, or Astrocytoma                                                                                   |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   0/100 (0%)   0/100 (0%)   0/100 (0%)  |2/100 (2%)   0/100 (0%)   0/100 (0%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     2.3%         0.0%         0.0%         0.0%        |2.3%         0.0%         0.0%         2.4%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    0/48 (0%)   |1/59 (2%)    0/68 (0%)    0/60 (0%)    1/61 (2%)    |
|FIRST INCIDENCE    |     645          ---          ---          ---         |547          ---          ---          726          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.370N     P=0.262N     P=0.247N     P=0.256N    |P=0.306      P=0.222N     P=0.238N     P=0.683N     |
|POLY 3             |     P=0.357N     P=0.251N     P=0.245N     P=0.252N    |P=0.300      P=0.230N     P=0.235N     P=0.689      |
|POLY 1.5           |     P=0.360N     P=0.246N     P=0.243N     P=0.247N    |P=0.302      P=0.234N     P=0.237N     P=0.685      |
|POLY 6             |     P=0.354N     P=0.257N     P=0.248N     P=0.258N    |P=0.301      P=0.225N     P=0.232N     P=0.688N     |
|LOGISTIC REGRESSION|     P=0.362N     P=0.231N     P=0.234N     P=0.231N    |P=0.319      P=0.273N     P=0.235N     P=0.693      |
|COCH-ARM / FISHERS |     P=0.365N     P=0.249N     P=0.249N     P=0.249N    |P=0.314      P=0.249N     P=0.249N     P=0.689N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 4
                     Statistical Analysis of Primary Tumors 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/Preputial Gland                                                                                                         |
|     Adenoma                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     13/100 (13%) 9/99 (9%)    10/100 (10%) 13/99 (13%) |11/90 (12%)  15/96 (16%)  11/97 (11%)  16/96 (17%)  |
|POLY-3 ADJUSTED (b)|     15.0%        10.8%        11.6%        15.8%       |14.1%        17.5%        13.0%        19.5%        |
|TERMINAL (d)       |     7/57 (12%)   4/45 (9%)    2/47 (4%)    7/47 (15%)  |7/56 (13%)   15/65 (23%)  10/58 (17%)  14/59 (24%)  |
|FIRST INCIDENCE    |     649          396          489          445         |597          737 (T)      647          651          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.291      P=0.383N     P=0.414N     P=0.442     |P=0.227      P=0.398      P=0.548N     P=0.247      |
|POLY 3             |     P=0.301      P=0.281N     P=0.335N     P=0.527     |P=0.242      P=0.350      P=0.507N     P=0.239      |
|POLY 1.5           |     P=0.313      P=0.271N     P=0.333N     P=0.545     |P=0.242      P=0.340      P=0.512N     P=0.234      |
|POLY 6             |     P=0.292      P=0.293N     P=0.332N     P=0.511     |P=0.256      P=0.361      P=0.502N     P=0.256      |
|LOGISTIC REGRESSION|     P=0.338      P=0.250N     P=0.333N     P=0.537     |P=0.267      P=0.393      P=0.489N     P=0.268      |
|COCH-ARM / FISHERS |     P=0.330      P=0.257N     P=0.329N     P=0.572     |P=0.275      P=0.325      P=0.515N     P=0.258      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Clitoral/Preputial Gland                                                                                                         |
|     Carcinoma                                                                                                                   |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/99 (0%)    5/100 (5%)   0/99 (0%)   |0/90 (0%)    0/96 (0%)    0/97 (0%)    0/96 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         5.9%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    0/45 (0%)    2/47 (4%)    0/47 (0%)   |0/56 (0%)    0/65 (0%)    0/58 (0%)    0/59 (0%)    |
|FIRST INCIDENCE    |     ---          ---          477          ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.472N     (e)          P=0.030 *    (e)         |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.475N     (e)          P=0.032 *    (e)         |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.467N     (e)          P=0.033 *    (e)         |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.480N     (e)          P=0.032 *    (e)         |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.451N     (e)          P=0.037 *    (e)         |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.458N     (e)          P=0.030 *    (e)         |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 5
                     Statistical Analysis of Primary Tumors 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/Preputial Gland                                                                                                         |
|     Carcinoma or Adenoma                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     13/100 (13%) 9/99 (9%)    13/100 (13%) 13/99 (13%) |11/90 (12%)  15/96 (16%)  11/97 (11%)  16/96 (17%)  |
|POLY-3 ADJUSTED (b)|     15.0%        10.8%        15.0%        15.8%       |14.1%        17.5%        13.0%        19.5%        |
|TERMINAL (d)       |     7/57 (12%)   4/45 (9%)    4/47 (9%)    7/47 (15%)  |7/56 (13%)   15/65 (23%)  10/58 (17%)  14/59 (24%)  |
|FIRST INCIDENCE    |     649          396          477          445         |597          737 (T)      647          651          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.332      P=0.383N     P=0.486      P=0.442     |P=0.227      P=0.398      P=0.548N     P=0.247      |
|POLY 3             |     P=0.343      P=0.281N     P=0.584N     P=0.527     |P=0.242      P=0.350      P=0.507N     P=0.239      |
|POLY 1.5           |     P=0.356      P=0.271N     P=0.583      P=0.545     |P=0.242      P=0.340      P=0.512N     P=0.234      |
|POLY 6             |     P=0.332      P=0.293N     P=0.580N     P=0.511     |P=0.256      P=0.361      P=0.502N     P=0.256      |
|LOGISTIC REGRESSION|     P=0.387      P=0.250N     P=0.583N     P=0.537     |P=0.267      P=0.393      P=0.489N     P=0.268      |
|COCH-ARM / FISHERS |     P=0.376      P=0.257N     P=0.583N     P=0.572     |P=0.275      P=0.325      P=0.515N     P=0.258      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Heart                                                                                                                            |
|     Schwannoma Malignant                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   1/100 (1%)   1/100 (1%)   1/100 (1%)  |0/100 (0%)   1/100 (1%)   2/100 (2%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     2.3%         1.2%         1.2%         1.2%        |0.0%         1.1%         2.3%         0.0%         |
|TERMINAL (d)       |     2/57 (4%)    0/46 (0%)    0/47 (0%)    1/48 (2%)   |0/59 (0%)    1/68 (2%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |     736 (T)      720          725          736 (T)     |---          737 (T)      687          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.559N     P=0.562N     P=0.546N     P=0.560N    |P=0.448N     P=0.528      P=0.248      (e)          |
|POLY 3             |     P=0.550N     P=0.518N     P=0.509N     P=0.520N    |P=0.451N     P=0.509      P=0.244      (e)          |
|POLY 1.5           |     P=0.547N     P=0.511N     P=0.505N     P=0.512N    |P=0.453N     P=0.505      P=0.241      (e)          |
|POLY 6             |     P=0.553N     P=0.525N     P=0.511N     P=0.526N    |P=0.443N     P=0.514      P=0.248      (e)          |
|LOGISTIC REGRESSION|     P=0.557N     P=0.532N     P=0.512N     P=0.560N    |P=0.449N     P=0.528      P=0.243      (e)          |
|COCH-ARM / FISHERS |     P=0.543N     P=0.500N     P=0.500N     P=0.500N    |P=0.444N     P=0.500      P=0.249      (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 6
                     Statistical Analysis of Primary Tumors 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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Islets, Pancreatic                                                                                                               |
|     Adenoma                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/99 (3%)    3/99 (3%)    6/99 (6%)    3/99 (3%)   |1/100 (1%)   0/100 (0%)   3/99 (3%)    1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     3.5%         3.7%         7.2%         3.7%        |1.2%         0.0%         3.5%         1.2%         |
|TERMINAL (d)       |     2/57 (4%)    2/46 (4%)    6/47 (13%)   3/48 (6%)   |1/59 (2%)    0/68 (0%)    3/60 (5%)    1/61 (2%)    |
|FIRST INCIDENCE    |     714          659          736 (T)      736 (T)     |737 (T)      ---          737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.561N     P=0.583      P=0.172      P=0.591     |P=0.618      P=0.472N     P=0.312      P=0.754N     |
|POLY 3             |     P=0.551N     P=0.636      P=0.237      P=0.633     |P=0.613      P=0.491N     P=0.312      P=0.759      |
|POLY 1.5           |     P=0.540N     P=0.645      P=0.241      P=0.644     |P=0.613      P=0.495N     P=0.308      P=0.757      |
|POLY 6             |     P=0.559N     P=0.626      P=0.232      P=0.623     |P=0.619      P=0.486N     P=0.319      P=0.756N     |
|LOGISTIC REGRESSION|     P=0.551N     P=0.623      P=0.225      P=0.624     |P=0.618      (e)          P=0.312      P=0.754N     |
|COCH-ARM / FISHERS |     P=0.525N     P=0.659N     P=0.249      P=0.659N    |P=0.630      P=0.500N     P=0.307      P=0.751N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Islets, Pancreatic                                                                                                               |
|     Carcinoma or Adenoma                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/99 (4%)    5/99 (5%)    6/99 (6%)    4/99 (4%)   |2/100 (2%)   1/100 (1%)   4/99 (4%)    2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     4.7%         6.2%         7.2%         5.0%        |2.3%         1.1%         4.6%         2.4%         |
|TERMINAL (d)       |     3/57 (5%)    2/46 (4%)    6/47 (13%)   3/48 (6%)   |2/59 (3%)    1/68 (2%)    4/60 (7%)    2/61 (3%)    |
|FIRST INCIDENCE    |     714          659          736 (T)      702         |737 (T)      737 (T)      737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.516N     P=0.400      P=0.272      P=0.564     |P=0.582      P=0.451N     P=0.346      P=0.682N     |
|POLY 3             |     P=0.505N     P=0.467      P=0.360      P=0.609     |P=0.579      P=0.484N     P=0.346      P=0.691      |
|POLY 1.5           |     P=0.494N     P=0.479      P=0.365      P=0.621     |P=0.579      P=0.491N     P=0.340      P=0.686      |
|POLY 6             |     P=0.515N     P=0.455      P=0.354      P=0.598     |P=0.586      P=0.475N     P=0.355      P=0.685N     |
|LOGISTIC REGRESSION|     P=0.507N     P=0.445      P=0.344      P=0.596     |P=0.582      P=0.451N     P=0.346      P=0.682N     |
|COCH-ARM / FISHERS |     P=0.477N     P=0.500      P=0.374      P=0.640N    |P=0.598      P=0.500N     P=0.337      P=0.689N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 7
                     Statistical Analysis of Primary Tumors 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                                                                                                             |
|     Carcinoma or Adenoma                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   0/100 (0%)   2/100 (2%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         2.5%        |0.0%         0.0%         0.0%         1.2%         |
|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    |     ---          ---          ---          673         |---          ---          ---          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.040 *    (e)          (e)          P=0.215     |P=0.229      (e)          (e)          P=0.507      |
|POLY 3             |     P=0.041 *    (e)          (e)          P=0.227     |P=0.229      (e)          (e)          P=0.499      |
|POLY 1.5           |     P=0.041 *    (e)          (e)          P=0.231     |P=0.229      (e)          (e)          P=0.496      |
|POLY 6             |     P=0.040 *    (e)          (e)          P=0.223     |P=0.231      (e)          (e)          P=0.505      |
|LOGISTIC REGRESSION|     P=0.040 *    (e)          (e)          P=0.227     |(e)          (e)          (e)          P=0.507      |
|COCH-ARM / FISHERS |     P=0.043 *    (e)          (e)          P=0.249     |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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Hepatocellular Adenoma                                                                                                      |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   2/100 (2%)   3/100 (3%)   0/100 (0%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     1.2%         2.5%         3.6%         0.0%        |0.0%         0.0%         0.0%         1.2%         |
|TERMINAL (d)       |     1/57 (2%)    1/46 (2%)    2/47 (4%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     736 (T)      711          696          ---         |---          ---          ---          676          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.226N     P=0.451      P=0.256      P=0.534N    |P=0.237      (e)          (e)          P=0.516      |
|POLY 3             |     P=0.225N     P=0.482      P=0.298      P=0.511N    |P=0.229      (e)          (e)          P=0.499      |
|POLY 1.5           |     P=0.220N     P=0.489      P=0.302      P=0.507N    |P=0.229      (e)          (e)          P=0.497      |
|POLY 6             |     P=0.230N     P=0.476      P=0.296      P=0.515N    |P=0.232      (e)          (e)          P=0.506      |
|LOGISTIC REGRESSION|     P=0.221N     P=0.470      P=0.295      (e)         |P=0.240      (e)          (e)          P=0.503      |
|COCH-ARM / FISHERS |     P=0.212N     P=0.500      P=0.311      P=0.500N    |P=0.233      (e)          (e)          P=0.500      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 8
                     Statistical Analysis of Primary Tumors 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                                                                                                                             |
|     Alveolar/Bronchiolar Adenoma                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/100 (3%)   5/100 (5%)   5/100 (5%)   4/100 (4%)  |3/100 (3%)   5/100 (5%)   5/100 (5%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     3.5%         6.1%         6.0%         4.9%        |3.5%         5.5%         5.7%         1.2%         |
|TERMINAL (d)       |     3/57 (5%)    4/46 (9%)    5/47 (11%)   3/48 (6%)   |3/59 (5%)    2/68 (3%)    3/60 (5%)    1/61 (2%)    |
|FIRST INCIDENCE    |     736 (T)      647          736 (T)      673         |737 (T)      598          687          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.582      P=0.255      P=0.258      P=0.417     |P=0.125N     P=0.428      P=0.373      P=0.295N     |
|POLY 3             |     P=0.593      P=0.333      P=0.345      P=0.471     |P=0.126N     P=0.389      P=0.373      P=0.309N     |
|POLY 1.5           |     P=0.587N     P=0.342      P=0.351      P=0.482     |P=0.127N     P=0.376      P=0.366      P=0.313N     |
|POLY 6             |     P=0.586      P=0.324      P=0.341      P=0.463     |P=0.121N     P=0.407      P=0.383      P=0.298N     |
|LOGISTIC REGRESSION|     P=0.594      P=0.314      P=0.258      P=0.458     |P=0.123N     P=0.373      P=0.385      P=0.295N     |
|COCH-ARM / FISHERS |     P=0.572N     P=0.360      P=0.360      P=0.500     |P=0.118N     P=0.360      P=0.360      P=0.311N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung                                                                                                                             |
|     Alveolar/Bronchiolar Carcinoma                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   2/100 (2%)   0/100 (0%)   1/100 (1%)  |1/100 (1%)   0/100 (0%)   0/100 (0%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     0.0%         2.5%         0.0%         1.2%        |1.2%         0.0%         0.0%         1.2%         |
|TERMINAL (d)       |     0/57 (0%)    2/46 (4%)    0/47 (0%)    1/48 (2%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    1/61 (2%)    |
|FIRST INCIDENCE    |     ---          736 (T)      ---          736 (T)     |610          ---          ---          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.648      P=0.193      (e)          P=0.466     |P=0.492      P=0.491N     P=0.486N     P=0.758N     |
|POLY 3             |     P=0.646      P=0.227      (e)          P=0.489     |P=0.489      P=0.492N     P=0.496N     P=0.758      |
|POLY 1.5           |     P=0.653      P=0.231      (e)          P=0.493     |P=0.491      P=0.495N     P=0.498N     P=0.756      |
|POLY 6             |     P=0.641      P=0.223      (e)          P=0.485     |P=0.490      P=0.487N     P=0.494N     P=0.757N     |
|LOGISTIC REGRESSION|     (e)          P=0.193      (e)          P=0.466     |P=0.518      P=0.554N     P=0.486N     P=0.758N     |
|COCH-ARM / FISHERS |     P=0.662      P=0.249      (e)          P=0.500     |P=0.501      P=0.500N     P=0.500N     P=0.751N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 9
                     Statistical Analysis of Primary Tumors 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                                                                                                                             |
|     Alveolar/Bronchiolar Carcinoma or Alveolar/Bronchiolar                                                                      |
|     Adenoma                                                                                                                     |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/100 (3%)   7/100 (7%)   5/100 (5%)   5/100 (5%)  |4/100 (4%)   5/100 (5%)   5/100 (5%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     3.5%         8.6%         6.0%         6.2%        |4.7%         5.5%         5.7%         2.4%         |
|TERMINAL (d)       |     3/57 (5%)    6/46 (13%)   5/47 (11%)   4/48 (8%)   |3/59 (5%)    2/68 (3%)    3/60 (5%)    2/61 (3%)    |
|FIRST INCIDENCE    |     736 (T)      647          736 (T)      673         |610          598          687          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.546      P=0.093      P=0.258      P=0.277     |P=0.205N     P=0.569      P=0.518      P=0.328N     |
|POLY 3             |     P=0.558      P=0.145      P=0.345      P=0.330     |P=0.209N     P=0.530      P=0.513      P=0.344N     |
|POLY 1.5           |     P=0.570      P=0.152      P=0.351      P=0.341     |P=0.209N     P=0.517      P=0.506      P=0.349N     |
|POLY 6             |     P=0.550      P=0.138      P=0.341      P=0.321     |P=0.204N     P=0.549      P=0.522      P=0.332N     |
|LOGISTIC REGRESSION|     P=0.561      P=0.131      P=0.258      P=0.317     |P=0.204N     P=0.497      P=0.519      P=0.337N     |
|COCH-ARM / FISHERS |     P=0.587      P=0.166      P=0.360      P=0.360     |P=0.193N     P=0.500      P=0.500      P=0.341N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mammary Gland                                                                                                                    |
|     Carcinoma                                                                                                                   |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   1/100 (1%)   0/100 (0%)   0/100 (0%)  |2/100 (2%)   7/100 (7%)   5/100 (5%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         0.0%         0.0%        |2.3%         7.8%         5.7%         2.4%         |
|TERMINAL (d)       |     0/57 (0%)    1/46 (2%)    0/47 (0%)    0/48 (0%)   |2/59 (3%)    4/68 (6%)    3/60 (5%)    2/61 (3%)    |
|FIRST INCIDENCE    |     ---          736 (T)      ---          ---         |737 (T)      589          656          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.607N     P=0.457      (e)          (e)         |P=0.206N     P=0.120      P=0.233      P=0.682N     |
|POLY 3             |     P=0.607N     P=0.490      (e)          (e)         |P=0.202N     P=0.098      P=0.231      P=0.691      |
|POLY 1.5           |     P=0.603N     P=0.493      (e)          (e)         |P=0.205N     P=0.093      P=0.226      P=0.686      |
|POLY 6             |     P=0.610N     P=0.486      (e)          (e)         |P=0.193N     P=0.107      P=0.240      P=0.685N     |
|LOGISTIC REGRESSION|     (e)          P=0.457      (e)          (e)         |P=0.203N     P=0.096      P=0.236      P=0.682N     |
|COCH-ARM / FISHERS |     P=0.597N     P=0.500      (e)          (e)         |P=0.194N     P=0.085      P=0.222      P=0.689N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 10
                     Statistical Analysis of Primary Tumors 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                                                                                                                    |
|     Carcinoma or Adenoma                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   1/100 (1%)   0/100 (0%)   0/100 (0%)  |3/100 (3%)   8/100 (8%)   6/100 (6%)   3/100 (3%)   |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         0.0%         0.0%        |3.5%         8.9%         6.8%         3.5%         |
|TERMINAL (d)       |     0/57 (0%)    1/46 (2%)    0/47 (0%)    0/48 (0%)   |3/59 (5%)    4/68 (6%)    3/60 (5%)    2/61 (3%)    |
|FIRST INCIDENCE    |     ---          736 (T)      ---          ---         |737 (T)      589          637          704          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.607N     P=0.457      (e)          (e)         |P=0.232N     P=0.153      P=0.267      P=0.642N     |
|POLY 3             |     P=0.607N     P=0.490      (e)          (e)         |P=0.231N     P=0.125      P=0.263      P=0.659      |
|POLY 1.5           |     P=0.603N     P=0.493      (e)          (e)         |P=0.234N     P=0.117      P=0.255      P=0.653      |
|POLY 6             |     P=0.610N     P=0.486      (e)          (e)         |P=0.220N     P=0.137      P=0.274      P=0.649N     |
|LOGISTIC REGRESSION|     (e)          P=0.457      (e)          (e)         |P=0.232N     P=0.118      P=0.260      P=0.634N     |
|COCH-ARM / FISHERS |     P=0.597N     P=0.500      (e)          (e)         |P=0.219N     P=0.107      P=0.249      P=0.659N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mammary Gland                                                                                                                    |
|     Fibroadenoma                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     6/100 (6%)   6/100 (6%)   11/100 (11%) 9/100 (9%)  |56/100 (56%) 62/100 (62%) 54/100 (54%) 64/100 (64%) |
|POLY-3 ADJUSTED (b)|     7.0%         7.4%         13.1%        11.0%       |62.5%        67.0%        59.8%        71.8%        |
|TERMINAL (d)       |     6/57 (11%)   4/46 (9%)    6/47 (13%)   6/48 (13%)  |39/59 (66%)  49/68 (72%)  40/60 (67%)  45/61 (74%)  |
|FIRST INCIDENCE    |     736 (T)      712          672          673         |543          522          557          522          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.256      P=0.489      P=0.091      P=0.199     |P=0.151      P=0.471N     P=0.374N     P=0.268      |
|POLY 3             |     P=0.269      P=0.583      P=0.142      P=0.259     |P=0.109      P=0.305      P=0.409N     P=0.111      |
|POLY 1.5           |     P=0.280      P=0.595      P=0.147      P=0.273     |P=0.108      P=0.274      P=0.429N     P=0.101      |
|POLY 6             |     P=0.263      P=0.571      P=0.140      P=0.250     |P=0.141      P=0.346      P=0.381N     P=0.155      |
|LOGISTIC REGRESSION|     P=0.259      P=0.553      P=0.137      P=0.241     |P=0.103      P=0.405      P=0.327N     P=0.128      |
|COCH-ARM / FISHERS |     P=0.296      P=0.616N     P=0.155      P=0.296     |P=0.187      P=0.236      P=0.444N     P=0.156      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 11
                     Statistical Analysis of Primary Tumors 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                                                                                                                    |
|     Fibroma, Fibroadenoma or Adenoma                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     6/100 (6%)   6/100 (6%)   11/100 (11%) 9/100 (9%)  |56/100 (56%) 63/100 (63%) 55/100 (55%) 64/100 (64%) |
|POLY-3 ADJUSTED (b)|     7.0%         7.4%         13.1%        11.0%       |62.5%        67.9%        60.6%        71.8%        |
|TERMINAL (d)       |     6/57 (11%)   4/46 (9%)    6/47 (13%)   6/48 (13%)  |39/59 (66%)  49/68 (72%)  40/60 (67%)  45/61 (74%)  |
|FIRST INCIDENCE    |     736 (T)      712          672          673         |543          522          557          522          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.256      P=0.489      P=0.091      P=0.199     |P=0.175      P=0.521N     P=0.423N     P=0.268      |
|POLY 3             |     P=0.269      P=0.583      P=0.142      P=0.259     |P=0.127      P=0.260      P=0.457N     P=0.111      |
|POLY 1.5           |     P=0.280      P=0.595      P=0.147      P=0.273     |P=0.127      P=0.229      P=0.482N     P=0.101      |
|POLY 6             |     P=0.263      P=0.571      P=0.140      P=0.250     |P=0.159      P=0.304      P=0.421N     P=0.155      |
|LOGISTIC REGRESSION|     P=0.259      P=0.553      P=0.137      P=0.241     |P=0.121      P=0.343      P=0.388N     P=0.128      |
|COCH-ARM / FISHERS |     P=0.296      P=0.616N     P=0.155      P=0.296     |P=0.214      P=0.194      P=0.500N     P=0.156      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mammary Gland                                                                                                                    |
|     Fibroma, Fibroadenoma, Carcinoma, or Adenoma                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     6/100 (6%)   7/100 (7%)   11/100 (11%) 9/100 (9%)  |58/100 (58%) 67/100 (67%) 55/100 (55%) 65/100 (65%) |
|POLY-3 ADJUSTED (b)|     7.0%         8.6%         13.1%        11.0%       |64.7%        71.7%        60.6%        72.9%        |
|TERMINAL (d)       |     6/57 (11%)   5/46 (11%)   6/47 (13%)   6/48 (13%)  |41/59 (70%)  51/68 (75%)  40/60 (67%)  46/61 (75%)  |
|FIRST INCIDENCE    |     736 (T)      712          672          673         |543          522          557          522          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.302      P=0.363      P=0.091      P=0.199     |P=0.243      P=0.497      P=0.322N     P=0.312      |
|POLY 3             |     P=0.316      P=0.462      P=0.142      P=0.259     |P=0.187      P=0.184      P=0.333N     P=0.141      |
|POLY 1.5           |     P=0.328      P=0.476      P=0.147      P=0.273     |P=0.188      P=0.153      P=0.363N     P=0.129      |
|POLY 6             |     P=0.309      P=0.449      P=0.140      P=0.250     |P=0.227      P=0.236      P=0.293N     P=0.196      |
|LOGISTIC REGRESSION|     P=0.307      P=0.428      P=0.137      P=0.241     |P=0.184      P=0.235      P=0.272N     P=0.161      |
|COCH-ARM / FISHERS |     P=0.346      P=0.500      P=0.155      P=0.296     |P=0.299      P=0.121      P=0.388N     P=0.192      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 12
                     Statistical Analysis of Primary Tumors 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                                                                                                                            |
|     Tubulostromal Adenoma                                                                                                       |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |3/100 (3%)   2/100 (2%)   2/100 (2%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|                                                        |3.5%         2.2%         2.3%         1.2%         |
|TERMINAL (d)       |                                                        |2/59 (3%)    1/68 (2%)    1/60 (2%)    1/61 (2%)    |
|FIRST INCIDENCE    |                                                        |736          631          637          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.311N     P=0.441N     P=0.486N     P=0.296N     |
|POLY 3             |                                                        |P=0.317N     P=0.478N     P=0.488N     P=0.309N     |
|POLY 1.5           |                                                        |P=0.316N     P=0.487N     P=0.494N     P=0.313N     |
|POLY 6             |                                                        |P=0.313N     P=0.464N     P=0.479N     P=0.298N     |
|LOGISTIC REGRESSION|                                                        |P=0.311N     P=0.477N     P=0.486N     P=0.296N     |
|COCH-ARM / FISHERS |                                                        |P=0.301N     P=0.500N     P=0.500N     P=0.311N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas                                                                                                                         |
|     Adenoma                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/98 (3%)    5/99 (5%)    6/99 (6%)    5/99 (5%)   |0/100 (0%)   1/100 (1%)   0/99 (0%)    1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     3.5%         6.1%         7.2%         6.2%        |0.0%         1.1%         0.0%         1.2%         |
|TERMINAL (d)       |     2/57 (4%)    4/46 (9%)    5/47 (11%)   2/48 (4%)   |0/59 (0%)    1/68 (2%)    0/60 (0%)    1/61 (2%)    |
|FIRST INCIDENCE    |     658          329          729          565         |---          737 (T)      ---          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.443      P=0.271      P=0.174      P=0.296     |P=0.492      P=0.528      (e)          P=0.507      |
|POLY 3             |     P=0.449      P=0.335      P=0.238      P=0.332     |P=0.497      P=0.509      (e)          P=0.499      |
|POLY 1.5           |     P=0.461      P=0.347      P=0.244      P=0.345     |P=0.495      P=0.505      (e)          P=0.496      |
|POLY 6             |     P=0.440      P=0.321      P=0.231      P=0.320     |P=0.503      P=0.514      (e)          P=0.505      |
|LOGISTIC REGRESSION|     P=0.461      P=0.376      P=0.233      P=0.337     |(e)          P=0.528      (e)          P=0.507      |
|COCH-ARM / FISHERS |     P=0.480      P=0.366      P=0.254      P=0.366     |P=0.500      P=0.500      (e)          P=0.500      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 13
                     Statistical Analysis of Primary Tumors 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 or Unspecified Site                                                                               |
|     Adenoma                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     34/98 (35%)  35/95 (37%)  28/97 (29%)  35/100 (35%)|61/99 (62%)  59/99 (60%)  68/98 (69%)  51/98 (52%)  |
|POLY-3 ADJUSTED (b)|     38.8%        42.9%        33.5%        40.4%       |65.8%        62.5%        73.4%        58.4%        |
|TERMINAL (d)       |     23/57 (40%)  20/45 (44%)  18/46 (39%)  16/48 (33%) |40/59 (68%)  36/67 (54%)  45/60 (75%)  34/61 (56%)  |
|FIRST INCIDENCE    |     579          533          489          442         |533          563          429          522          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.349      P=0.192      P=0.482N     P=0.277     |P=0.113N     P=0.191N     P=0.307      P=0.095N     |
|POLY 3             |     P=0.500      P=0.349      P=0.281N     P=0.479     |P=0.143N     P=0.371N     P=0.159      P=0.183N     |
|POLY 1.5           |     P=0.509      P=0.380      P=0.260N     P=0.503     |P=0.123N     P=0.404N     P=0.155      P=0.176N     |
|POLY 6             |     P=0.505      P=0.316      P=0.307N     P=0.465     |P=0.147N     P=0.315N     P=0.171      P=0.167N     |
|LOGISTIC REGRESSION|     P=0.470      P=0.346      P=0.274N     P=0.476     |P=0.093N     P=0.408N     P=0.177      P=0.138N     |
|COCH-ARM / FISHERS |     P=0.521      P=0.436      P=0.236N     P=0.541     |P=0.056N     P=0.442N     P=0.159      P=0.113N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              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 or Unspecified Site                                                                               |
|     Carcinoma                                                                                                                   |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/98 (0%)    1/95 (1%)    2/97 (2%)    0/100 (0%)  |3/99 (3%)    1/99 (1%)    4/98 (4%)    2/98 (2%)    |
|POLY-3 ADJUSTED (b)|     0.0%         1.3%         2.5%         0.0%        |3.5%         1.1%         4.6%         2.4%         |
|TERMINAL (d)       |     0/57 (0%)    0/45 (0%)    1/46 (2%)    0/48 (0%)   |2/59 (3%)    1/67 (2%)    2/60 (3%)    2/61 (3%)    |
|FIRST INCIDENCE    |     ---          685          726          ---         |655          737 (T)      678          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.456N     P=0.482      P=0.211      (e)         |P=0.569N     P=0.267N     P=0.519      P=0.485N     |
|POLY 3             |     P=0.451N     P=0.484      P=0.229      (e)         |P=0.586N     P=0.294N     P=0.508      P=0.509N     |
|POLY 1.5           |     P=0.444N     P=0.487      P=0.232      (e)         |P=0.585N     P=0.300N     P=0.501      P=0.514N     |
|POLY 6             |     P=0.456N     P=0.480      P=0.227      (e)         |P=0.578N     P=0.287N     P=0.518      P=0.497N     |
|LOGISTIC REGRESSION|     P=0.445N     P=0.493      P=0.225      (e)         |P=0.575N     P=0.290N     P=0.507      P=0.498N     |
|COCH-ARM / FISHERS |     P=0.435N     P=0.492      P=0.246      (e)         |P=0.566N     P=0.311N     P=0.494      P=0.505N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 14
                     Statistical Analysis of Primary Tumors 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 or Unspecified Site                                                                               |
|     Carcinoma or Adenoma                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     34/98 (35%)  36/95 (38%)  30/97 (31%)  35/100 (35%)|64/99 (65%)  60/99 (61%)  72/98 (73%)  53/98 (54%)  |
|POLY-3 ADJUSTED (b)|     38.8%        44.0%        35.8%        40.4%       |68.8%        63.5%        77.4%        60.6%        |
|TERMINAL (d)       |     23/57 (40%)  20/45 (44%)  19/46 (41%)  16/48 (33%) |42/59 (71%)  37/67 (55%)  47/60 (78%)  36/61 (59%)  |
|FIRST INCIDENCE    |     579          533          489          442         |533          563          429          522          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.393      P=0.157      P=0.510      P=0.277     |P=0.108N     P=0.129N     P=0.272      P=0.074N     |
|POLY 3             |     P=0.534N     P=0.295      P=0.401N     P=0.479     |P=0.138N     P=0.266N     P=0.114      P=0.153N     |
|POLY 1.5           |     P=0.523N     P=0.324      P=0.374N     P=0.503     |P=0.115N     P=0.295N     P=0.111      P=0.143N     |
|POLY 6             |     P=0.533N     P=0.267      P=0.433N     P=0.465     |P=0.146N     P=0.221N     P=0.125      P=0.142N     |
|LOGISTIC REGRESSION|     P=0.522      P=0.292      P=0.391N     P=0.476     |P=0.086N     P=0.293N     P=0.133      P=0.108N     |
|COCH-ARM / FISHERS |     P=0.508N     P=0.377      P=0.342N     P=0.541     |P=0.049N*    P=0.330N     P=0.118      P=0.086N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              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                                                                                                 |
|     Adenoma                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/98 (0%)    1/95 (1%)    1/97 (1%)    1/100 (1%)  |0/99 (0%)    3/99 (3%)    1/98 (1%)    0/98 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         1.3%         1.2%         1.2%        |0.0%         3.4%         1.2%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    1/45 (2%)    1/46 (2%)    0/48 (0%)   |0/59 (0%)    2/67 (3%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          736 (T)      736 (T)      703         |---          682          737 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.543      P=0.453      P=0.457      P=0.490     |P=0.237N     P=0.146      P=0.503      (e)          |
|POLY 3             |     P=0.550      P=0.483      P=0.492      P=0.493     |P=0.235N     P=0.129      P=0.503      (e)          |
|POLY 1.5           |     P=0.556      P=0.487      P=0.494      P=0.497     |P=0.238N     P=0.126      P=0.500      (e)          |
|POLY 6             |     P=0.545      P=0.479      P=0.489      P=0.489     |P=0.227N     P=0.133      P=0.506      (e)          |
|LOGISTIC REGRESSION|     P=0.554      P=0.453      P=0.457      P=0.495     |P=0.237N     P=0.131      P=0.503      (e)          |
|COCH-ARM / FISHERS |     P=0.565      P=0.492      P=0.497      P=0.505     |P=0.236N     P=0.123      P=0.497      (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 15
                     Statistical Analysis of Primary Tumors 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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Seminal Vesicle                                                                                                                  |
|     Adenoma                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   2/100 (2%)   0/100 (0%)  |                                                    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         2.4%         0.0%        |                                                    |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    2/47 (4%)    0/48 (0%)   |                                                    |
|FIRST INCIDENCE    |     ---          ---          736 (T)      ---         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.648N     (e)          P=0.197      (e)         |                                                    |
|POLY 3             |     P=0.644N     (e)          P=0.233      (e)         |                                                    |
|POLY 1.5           |     P=0.640N     (e)          P=0.235      (e)         |                                                    |
|POLY 6             |     P=0.647N     (e)          P=0.231      (e)         |                                                    |
|LOGISTIC REGRESSION|     (e)          (e)          P=0.197      (e)         |                                                    |
|COCH-ARM / FISHERS |     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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Skin                                                                                                                             |
|     Basal Cell Adenoma                                                                                                          |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/100 (3%)   0/100 (0%)   3/100 (3%)   3/100 (3%)  |0/100 (0%)   1/100 (1%)   1/100 (1%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     3.5%         0.0%         3.6%         3.7%        |0.0%         1.1%         1.1%         0.0%         |
|TERMINAL (d)       |     2/57 (4%)    0/46 (0%)    2/47 (4%)    1/48 (2%)   |0/59 (0%)    1/68 (2%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |     659          ---          586          656         |---          737 (T)      737 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.322      P=0.155N     P=0.595      P=0.609     |P=0.508N     P=0.528      P=0.503      (e)          |
|POLY 3             |     P=0.335      P=0.131N     P=0.650      P=0.635     |P=0.503N     P=0.509      P=0.505      (e)          |
|POLY 1.5           |     P=0.338      P=0.128N     P=0.654      P=0.645     |P=0.505N     P=0.505      P=0.502      (e)          |
|POLY 6             |     P=0.334      P=0.136N     P=0.648      P=0.627     |P=0.497N     P=0.514      P=0.508      (e)          |
|LOGISTIC REGRESSION|     P=0.331      P=0.132N     P=0.655      P=0.637     |(e)          P=0.528      P=0.503      (e)          |
|COCH-ARM / FISHERS |     P=0.343      P=0.123N     P=0.659N     P=0.659N    |P=0.501N     P=0.500      P=0.500      (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 16
                     Statistical Analysis of Primary Tumors 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                                                                                                                             |
|     Basal Cell Adenoma, Basosquamous Tumor Benign, or                                                                           |
|     Trichoepithelioma                                                                                                           |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/100 (3%)   1/100 (1%)   3/100 (3%)   8/100 (8%)  |0/100 (0%)   1/100 (1%)   3/100 (3%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     3.5%         1.2%         3.6%         9.8%        |0.0%         1.1%         3.4%         0.0%         |
|TERMINAL (d)       |     2/57 (4%)    1/46 (2%)    2/47 (4%)    5/48 (10%)  |0/59 (0%)    1/68 (2%)    2/60 (3%)    0/61 (0%)    |
|FIRST INCIDENCE    |     659          736 (T)      586          656         |---          737 (T)      710          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.007 **   P=0.373N     P=0.595      P=0.074     |P=0.411N     P=0.528      P=0.128      (e)          |
|POLY 3             |     P=0.008 **   P=0.327N     P=0.650      P=0.089     |P=0.413N     P=0.509      P=0.126      (e)          |
|POLY 1.5           |     P=0.008 **   P=0.319N     P=0.654      P=0.096     |P=0.415N     P=0.505      P=0.124      (e)          |
|POLY 6             |     P=0.007 **   P=0.335N     P=0.648      P=0.084     |P=0.404N     P=0.514      P=0.129      (e)          |
|LOGISTIC REGRESSION|     P=0.007 **   P=0.331N     P=0.655      P=0.085     |P=0.402N     P=0.528      P=0.130      (e)          |
|COCH-ARM / FISHERS |     P=0.009 **   P=0.311N     P=0.659N     P=0.107     |P=0.404N     P=0.500      P=0.123      (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Skin                                                                                                                             |
|     Basal Cell Carcinoma, Basal Cell Adenoma, Basosquamous                                                                      |
|     Tumor (benign, malignant or NOS), or Trichoepithelioma                                                                      |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/100 (3%)   1/100 (1%)   3/100 (3%)   8/100 (8%)  |0/100 (0%)   1/100 (1%)   3/100 (3%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     3.5%         1.2%         3.6%         9.8%        |0.0%         1.1%         3.4%         0.0%         |
|TERMINAL (d)       |     2/57 (4%)    1/46 (2%)    2/47 (4%)    5/48 (10%)  |0/59 (0%)    1/68 (2%)    2/60 (3%)    0/61 (0%)    |
|FIRST INCIDENCE    |     659          736 (T)      586          656         |---          737 (T)      710          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.007 **   P=0.373N     P=0.595      P=0.074     |P=0.411N     P=0.528      P=0.128      (e)          |
|POLY 3             |     P=0.008 **   P=0.327N     P=0.650      P=0.089     |P=0.413N     P=0.509      P=0.126      (e)          |
|POLY 1.5           |     P=0.008 **   P=0.319N     P=0.654      P=0.096     |P=0.415N     P=0.505      P=0.124      (e)          |
|POLY 6             |     P=0.007 **   P=0.335N     P=0.648      P=0.084     |P=0.404N     P=0.514      P=0.129      (e)          |
|LOGISTIC REGRESSION|     P=0.007 **   P=0.331N     P=0.655      P=0.085     |P=0.402N     P=0.528      P=0.130      (e)          |
|COCH-ARM / FISHERS |     P=0.009 **   P=0.311N     P=0.659N     P=0.107     |P=0.404N     P=0.500      P=0.123      (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 17
                     Statistical Analysis of Primary Tumors 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                                                                                                                             |
|     Basal or Sq. Cell Carcinoma, Carcinoma, Basosq. Tumor                                                                       |
|     (M or B), Basal Cell Adenoma, Adenoma, Papilloma, Sq Papilloma, Keratoacanthoma, Trichoepitheliom                           |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     14/100 (14%) 8/100 (8%)   14/100 (14%) 20/100 (20%)|1/100 (1%)   2/100 (2%)   6/100 (6%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     16.1%        9.8%         16.4%        24.5%       |1.2%         2.2%         6.9%         1.2%         |
|TERMINAL (d)       |     10/57 (18%)  4/46 (9%)    8/47 (17%)   14/48 (29%) |1/59 (2%)    2/68 (3%)    5/60 (8%)    1/61 (2%)    |
|FIRST INCIDENCE    |     627          688          535          656         |737 (T)      737 (T)      710          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.018 *    P=0.242N     P=0.428      P=0.084     |P=0.392N     P=0.549      P=0.065      P=0.754N     |
|POLY 3             |     P=0.018 *    P=0.159N     P=0.563      P=0.122     |P=0.393N     P=0.516      P=0.064      P=0.759      |
|POLY 1.5           |     P=0.020 *    P=0.147N     P=0.569      P=0.141     |P=0.396N     P=0.509      P=0.063      P=0.757      |
|POLY 6             |     P=0.016 *    P=0.172N     P=0.560      P=0.106     |P=0.383N     P=0.525      P=0.067      P=0.756N     |
|LOGISTIC REGRESSION|     P=0.016 *    P=0.169N     P=0.554      P=0.110     |P=0.371N     P=0.549      P=0.069      P=0.754N     |
|COCH-ARM / FISHERS |     P=0.025 *    P=0.129N     P=0.581N     P=0.173     |P=0.378N     P=0.500      P=0.059      P=0.751N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Skin                                                                                                                             |
|     Fibroma                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     12/100 (12%) 8/100 (8%)   9/100 (9%)   13/100 (13%)|4/100 (4%)   5/100 (5%)   4/100 (4%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     13.9%        9.8%         10.6%        15.9%       |4.7%         5.6%         4.6%         0.0%         |
|TERMINAL (d)       |     9/57 (16%)   4/46 (9%)    4/47 (9%)    9/48 (19%)  |2/59 (3%)    4/68 (6%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |     617          619          635          614         |660          711          652          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.199      P=0.377N     P=0.438N     P=0.350     |P=0.035N*    P=0.579      P=0.614N     P=0.061N     |
|POLY 3             |     P=0.211      P=0.278N     P=0.339N     P=0.438     |P=0.035N*    P=0.525      P=0.629N     P=0.065N     |
|POLY 1.5           |     P=0.222      P=0.263N     P=0.333N     P=0.462     |P=0.036N*    P=0.514      P=0.635N     P=0.066N     |
|POLY 6             |     P=0.200      P=0.292N     P=0.339N     P=0.416     |P=0.034N*    P=0.538      P=0.620N     P=0.062N     |
|LOGISTIC REGRESSION|     P=0.201      P=0.293N     P=0.346N     P=0.417     |P=0.034N*    P=0.536      P=0.637N     P=0.066N     |
|COCH-ARM / FISHERS |     P=0.239      P=0.240N     P=0.323N     P=0.500     |P=0.032N*    P=0.500      P=0.640N     P=0.061N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 18
                     Statistical Analysis of Primary Tumors 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                                                                                                                             |
|     Fibroma, Fibrosarcoma, Sarcoma, Myxoma, Myxosarcoma,                                                                        |
|     or Fibrous Histiocytoma                                                                                                     |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     13/100 (13%) 10/100 (10%) 11/100 (11%) 16/100 (16%)|6/100 (6%)   5/100 (5%)   4/100 (4%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     15.0%        12.1%        13.0%        19.2%       |6.9%         5.6%         4.6%         2.4%         |
|TERMINAL (d)       |     9/57 (16%)   5/46 (11%)   6/47 (13%)   9/48 (19%)  |2/59 (3%)    4/68 (6%)    1/60 (2%)    2/61 (3%)    |
|FIRST INCIDENCE    |     617          619          635          442         |613          711          652          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.123      P=0.485N     P=0.543N     P=0.221     |P=0.135N     P=0.418N     P=0.347N     P=0.131N     |
|POLY 3             |     P=0.141      P=0.374N     P=0.435N     P=0.303     |P=0.140N     P=0.477N     P=0.362N     P=0.144N     |
|POLY 1.5           |     P=0.146      P=0.357N     P=0.428N     P=0.319     |P=0.139N     P=0.486N     P=0.368N     P=0.147N     |
|POLY 6             |     P=0.137      P=0.390N     P=0.438N     P=0.291     |P=0.136N     P=0.465N     P=0.355N     P=0.138N     |
|LOGISTIC REGRESSION|     P=0.131      P=0.389N     P=0.443N     P=0.303     |P=0.134N     P=0.481N     P=0.373N     P=0.143N     |
|COCH-ARM / FISHERS |     P=0.152      P=0.329N     P=0.414N     P=0.344     |P=0.127N     P=0.500N     P=0.374N     P=0.140N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Skin                                                                                                                             |
|     Fibrosarcoma, Sarcoma, Myxosarcoma, or Fibrous Histiocytoma                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   2/100 (2%)   2/100 (2%)   3/100 (3%)  |2/100 (2%)   0/100 (0%)   0/100 (0%)   2/100 (2%)   |
|POLY-3 ADJUSTED (b)|     1.2%         2.4%         2.4%         3.6%        |2.3%         0.0%         0.0%         2.4%         |
|TERMINAL (d)       |     0/57 (0%)    1/46 (2%)    2/47 (4%)    0/48 (0%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    2/61 (3%)    |
|FIRST INCIDENCE    |     704          624          736 (T)      442         |613          ---          ---          737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.282      P=0.459      P=0.456      P=0.290     |P=0.308      P=0.221N     P=0.227N     P=0.679N     |
|POLY 3             |     P=0.295      P=0.483      P=0.491      P=0.295     |P=0.300      P=0.230N     P=0.235N     P=0.689      |
|POLY 1.5           |     P=0.298      P=0.489      P=0.494      P=0.299     |P=0.302      P=0.234N     P=0.237N     P=0.685      |
|POLY 6             |     P=0.293      P=0.477      P=0.488      P=0.291     |P=0.300      P=0.225N     P=0.232N     P=0.689N     |
|LOGISTIC REGRESSION|     P=0.319      P=0.497      P=0.489      P=0.372     |P=0.309      P=0.261N     P=0.240N     P=0.690      |
|COCH-ARM / FISHERS |     P=0.301      P=0.500      P=0.500      P=0.311     |P=0.314      P=0.249N     P=0.249N     P=0.689N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 19
                     Statistical Analysis of Primary Tumors 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                                                                                                                             |
|     Keratoacanthoma                                                                                                             |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     10/100 (10%) 5/100 (5%)   11/100 (11%) 12/100 (12%)|1/100 (1%)   1/100 (1%)   2/100 (2%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     11.6%        6.1%         13.0%        14.8%       |1.2%         1.1%         2.3%         1.2%         |
|TERMINAL (d)       |     7/57 (12%)   3/46 (7%)    6/47 (13%)   8/48 (17%)  |1/59 (2%)    1/68 (2%)    2/60 (3%)    1/61 (2%)    |
|FIRST INCIDENCE    |     627          713          535          702         |737 (T)      737 (T)      737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.132      P=0.238N     P=0.376      P=0.285     |P=0.640N     P=0.729N     P=0.506      P=0.754N     |
|POLY 3             |     P=0.139      P=0.167N     P=0.481      P=0.351     |P=0.639N     P=0.750N     P=0.508      P=0.759      |
|POLY 1.5           |     P=0.148      P=0.157N     P=0.488      P=0.374     |P=0.639N     P=0.755N     P=0.504      P=0.757      |
|POLY 6             |     P=0.132      P=0.179N     P=0.477      P=0.330     |P=0.634N     P=0.744N     P=0.514      P=0.756N     |
|LOGISTIC REGRESSION|     P=0.131      P=0.177N     P=0.475      P=0.335     |P=0.640N     P=0.729N     P=0.506      P=0.754N     |
|COCH-ARM / FISHERS |     P=0.161      P=0.141N     P=0.500      P=0.411     |P=0.628N     P=0.751N     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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Skin                                                                                                                             |
|     Lipoma                                                                                                                      |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   0/100 (0%)   0/100 (0%)   2/100 (2%)  |0/100 (0%)   0/100 (0%)   1/100 (1%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     1.2%         0.0%         0.0%         2.5%        |0.0%         0.0%         1.1%         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    |     303          ---          ---          736 (T)     |---          ---          728          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.156      P=0.502N     P=0.500N     P=0.460     |P=0.763N     (e)          P=0.510      (e)          |
|POLY 3             |     P=0.160      P=0.513N     P=0.507N     P=0.477     |P=0.771N     (e)          P=0.505      (e)          |
|POLY 1.5           |     P=0.161      P=0.508N     P=0.505N     P=0.485     |P=0.771N     (e)          P=0.502      (e)          |
|POLY 6             |     P=0.159      P=0.517N     P=0.509N     P=0.469     |P=0.769N     (e)          P=0.508      (e)          |
|LOGISTIC REGRESSION|     P=0.171      P=0.307N     (e)          P=0.555     |P=0.767N     (e)          P=0.510      (e)          |
|COCH-ARM / FISHERS |     P=0.163      P=0.500N     P=0.500N     P=0.500     |P=0.767N     (e)          P=0.500      (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 20
                     Statistical Analysis of Primary Tumors 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                                                                                                                             |
|     Sarcoma                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   1/100 (1%)   1/100 (1%)   3/100 (3%)  |1/100 (1%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         1.2%         3.6%        |1.2%         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    |     ---          624          736 (T)      442         |710          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.072      P=0.478      P=0.462      P=0.116     |P=0.593N     P=0.474N     P=0.491N     P=0.485N     |
|POLY 3             |     P=0.075      P=0.490      P=0.495      P=0.115     |P=0.603N     P=0.491N     P=0.496N     P=0.501N     |
|POLY 1.5           |     P=0.076      P=0.494      P=0.497      P=0.118     |P=0.601N     P=0.495N     P=0.498N     P=0.504N     |
|POLY 6             |     P=0.074      P=0.487      P=0.494      P=0.114     |P=0.606N     P=0.486N     P=0.493N     P=0.496N     |
|LOGISTIC REGRESSION|     P=0.083      P=0.526      P=0.462      P=0.139     |P=0.600N     P=0.493N     P=0.496N     P=0.501N     |
|COCH-ARM / FISHERS |     P=0.078      P=0.500      P=0.500      P=0.123     |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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Skin                                                                                                                             |
|     Squamous Cell Papilloma, Papilloma, Squamous Cell                                                                           |
|     Carcinoma or Keratoacanthoma                                                                                                |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     11/100 (11%) 7/100 (7%)   12/100 (12%) 13/100 (13%)|1/100 (1%)   1/100 (1%)   3/100 (3%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     12.7%        8.6%         14.2%        16.0%       |1.2%         1.1%         3.4%         1.2%         |
|TERMINAL (d)       |     8/57 (14%)   3/46 (7%)    7/47 (15%)   9/48 (19%)  |1/59 (2%)    1/68 (2%)    3/60 (5%)    1/61 (2%)    |
|FIRST INCIDENCE    |     627          688          535          702         |737 (T)      737 (T)      737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.169      P=0.357N     P=0.365      P=0.279     |P=0.592N     P=0.729N     P=0.312      P=0.754N     |
|POLY 3             |     P=0.177      P=0.266N     P=0.480      P=0.351     |P=0.592N     P=0.750N     P=0.315      P=0.759      |
|POLY 1.5           |     P=0.189      P=0.252N     P=0.488      P=0.376     |P=0.593N     P=0.755N     P=0.311      P=0.757      |
|POLY 6             |     P=0.166      P=0.281N     P=0.476      P=0.328     |P=0.586N     P=0.744N     P=0.321      P=0.756N     |
|LOGISTIC REGRESSION|     P=0.169      P=0.281N     P=0.472      P=0.334     |P=0.592N     P=0.729N     P=0.312      P=0.754N     |
|COCH-ARM / FISHERS |     P=0.206      P=0.230N     P=0.500      P=0.414     |P=0.579N     P=0.751N     P=0.311      P=0.751N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 21
                     Statistical Analysis of Primary Tumors 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                                                                                                                             |
|     Squamous Cell Papilloma, Papilloma, or Keratoacanthoma                                                                      |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     11/100 (11%) 7/100 (7%)   12/100 (12%) 13/100 (13%)|1/100 (1%)   1/100 (1%)   3/100 (3%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     12.7%        8.6%         14.2%        16.0%       |1.2%         1.1%         3.4%         1.2%         |
|TERMINAL (d)       |     8/57 (14%)   3/46 (7%)    7/47 (15%)   9/48 (19%)  |1/59 (2%)    1/68 (2%)    3/60 (5%)    1/61 (2%)    |
|FIRST INCIDENCE    |     627          688          535          702         |737 (T)      737 (T)      737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.169      P=0.357N     P=0.365      P=0.279     |P=0.592N     P=0.729N     P=0.312      P=0.754N     |
|POLY 3             |     P=0.177      P=0.266N     P=0.480      P=0.351     |P=0.592N     P=0.750N     P=0.315      P=0.759      |
|POLY 1.5           |     P=0.189      P=0.252N     P=0.488      P=0.376     |P=0.593N     P=0.755N     P=0.311      P=0.757      |
|POLY 6             |     P=0.166      P=0.281N     P=0.476      P=0.328     |P=0.586N     P=0.744N     P=0.321      P=0.756N     |
|LOGISTIC REGRESSION|     P=0.169      P=0.281N     P=0.472      P=0.334     |P=0.592N     P=0.729N     P=0.312      P=0.754N     |
|COCH-ARM / FISHERS |     P=0.206      P=0.230N     P=0.500      P=0.414     |P=0.579N     P=0.751N     P=0.311      P=0.751N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Skin                                                                                                                             |
|     Trichoepithelioma                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   1/100 (1%)   0/100 (0%)   5/100 (5%)  |0/100 (0%)   0/100 (0%)   2/100 (2%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         0.0%         6.2%        |0.0%         0.0%         2.3%         0.0%         |
|TERMINAL (d)       |     0/57 (0%)    1/46 (2%)    0/47 (0%)    4/48 (8%)   |0/59 (0%)    0/68 (0%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |     ---          736 (T)      ---          703         |---          ---          710          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.002 **   P=0.457      (e)          P=0.024 *   |P=0.636N     (e)          P=0.247      (e)          |
|POLY 3             |     P=0.002 **   P=0.490      (e)          P=0.029 *   |P=0.644N     (e)          P=0.244      (e)          |
|POLY 1.5           |     P=0.002 **   P=0.493      (e)          P=0.031 *   |P=0.644N     (e)          P=0.241      (e)          |
|POLY 6             |     P=0.002 **   P=0.486      (e)          P=0.027 *   |P=0.639N     (e)          P=0.248      (e)          |
|LOGISTIC REGRESSION|     P=0.002 **   P=0.457      (e)          P=0.028 *   |P=0.637N     (e)          P=0.248      (e)          |
|COCH-ARM / FISHERS |     P=0.003 **   P=0.500      (e)          P=0.030 *   |P=0.634N     (e)          P=0.249      (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 22
                     Statistical Analysis of Primary Tumors 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: Sebaceous Gland                                                                                                            |
|     Adenoma                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   1/100 (1%)   2/100 (2%)   1/100 (1%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         2.4%         1.2%        |0.0%         0.0%         0.0%         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    |     ---          696          736 (T)      716         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.585      P=0.488      P=0.197      P=0.493     |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.579      P=0.490      P=0.233      P=0.489     |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.586      P=0.494      P=0.235      P=0.493     |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.574      P=0.486      P=0.231      P=0.485     |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.584      P=0.494      P=0.197      P=0.486     |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.596      P=0.500      P=0.249      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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Skin: Sebaceous Gland                                                                                                            |
|     Carcinoma or Adenoma                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   1/100 (1%)   2/100 (2%)   1/100 (1%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     1.2%         1.2%         2.4%         1.2%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     1/57 (2%)    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)      696          736 (T)      716         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.643N     P=0.730      P=0.433      P=0.738     |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.640N     P=0.749      P=0.491      P=0.748     |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.635N     P=0.753      P=0.495      P=0.753     |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.643N     P=0.745      P=0.489      P=0.744     |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.644N     P=0.746      P=0.433      P=0.744     |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.628N     P=0.751N     P=0.500      P=0.751N    |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 23
                     Statistical Analysis of Primary Tumors 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                                                                                                                           |
|     Adenoma                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     93/100 (93%) 90/100 (90%) 91/100 (91%) 91/100 (91%)|                                                    |
|POLY-3 ADJUSTED (b)|     95.1%        94.8%        94.4%        95.8%       |                                                    |
|TERMINAL (d)       |     54/57 (95%)  45/46 (98%)  43/47 (92%)  47/48 (98%) |                                                    |
|FIRST INCIDENCE    |     476          461          463          410         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.333      P=0.147      P=0.210      P=0.173     |                                                    |
|POLY 3             |     P=0.450      P=0.600N     P=0.544N     P=0.556     |                                                    |
|POLY 1.5           |     P=0.560      P=0.480N     P=0.475N     P=0.573N    |                                                    |
|POLY 6             |     P=0.308      P=0.591      P=0.599N     P=0.372     |                                                    |
|LOGISTIC REGRESSION|     P=0.476      P=0.521N     P=0.490N     P=0.593     |                                                    |
|COCH-ARM / FISHERS |     P=0.517N     P=0.307N     P=0.398N     P=0.398N    |                                                    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thymus                                                                                                                           |
|     Thymoma Benign                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/97 (2%)    1/94 (1%)    1/95 (1%)    0/90 (0%)   |0/95 (0%)    0/95 (0%)    1/92 (1%)    1/91 (1%)    |
|POLY-3 ADJUSTED (b)|     2.4%         1.3%         1.3%         0.0%        |0.0%         0.0%         1.2%         1.3%         |
|TERMINAL (d)       |     2/55 (4%)    1/44 (2%)    1/45 (2%)    0/46 (0%)   |0/56 (0%)    0/64 (0%)    1/57 (2%)    1/56 (2%)    |
|FIRST INCIDENCE    |     736 (T)      736 (T)      736 (T)      ---         |---          ---          737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.246N     P=0.578N     P=0.570N     P=0.279N    |P=0.351      (e)          P=0.504      P=0.500      |
|POLY 3             |     P=0.248N     P=0.529N     P=0.517N     P=0.267N    |P=0.348      (e)          P=0.500      P=0.491      |
|POLY 1.5           |     P=0.247N     P=0.522N     P=0.513N     P=0.262N    |P=0.347      (e)          P=0.497      P=0.488      |
|POLY 6             |     P=0.247N     P=0.536N     P=0.520N     P=0.269N    |P=0.355      (e)          P=0.505      P=0.498      |
|LOGISTIC REGRESSION|     P=0.246N     P=0.578N     P=0.570N     (e)         |(e)          (e)          P=0.504      P=0.500      |
|COCH-ARM / FISHERS |     P=0.244N     P=0.512N     P=0.508N     P=0.268N    |P=0.356      (e)          P=0.492      P=0.489      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 24
                     Statistical Analysis of Primary Tumors 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                                                                                                                           |
|     Thymoma Malignant                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/97 (0%)    2/94 (2%)    0/95 (0%)    0/90 (0%)   |0/95 (0%)    0/95 (0%)    0/92 (0%)    0/91 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         2.6%         0.0%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/55 (0%)    0/44 (0%)    0/45 (0%)    0/46 (0%)   |0/56 (0%)    0/64 (0%)    0/57 (0%)    0/56 (0%)    |
|FIRST INCIDENCE    |     ---          466          ---          ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.376N     P=0.226      (e)          (e)         |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.389N     P=0.223      (e)          (e)         |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.385N     P=0.227      (e)          (e)         |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.392N     P=0.221      (e)          (e)         |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.378N     P=0.283      (e)          (e)         |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.379N     P=0.241      (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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thymus                                                                                                                           |
|     Thymoma: Benign, Malignant, NOS                                                                                             |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/97 (2%)    3/94 (3%)    1/95 (1%)    0/90 (0%)   |0/95 (0%)    0/95 (0%)    1/92 (1%)    1/91 (1%)    |
|POLY-3 ADJUSTED (b)|     2.4%         3.8%         1.3%         0.0%        |0.0%         0.0%         1.2%         1.3%         |
|TERMINAL (d)       |     2/55 (4%)    1/44 (2%)    1/45 (2%)    0/46 (0%)   |0/56 (0%)    0/64 (0%)    1/57 (2%)    1/56 (2%)    |
|FIRST INCIDENCE    |     736 (T)      466          736 (T)      ---         |---          ---          737 (T)      737 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.126N     P=0.429      P=0.570N     P=0.279N    |P=0.351      (e)          P=0.504      P=0.500      |
|POLY 3             |     P=0.131N     P=0.469      P=0.517N     P=0.267N    |P=0.348      (e)          P=0.500      P=0.491      |
|POLY 1.5           |     P=0.129N     P=0.476      P=0.513N     P=0.262N    |P=0.347      (e)          P=0.497      P=0.488      |
|POLY 6             |     P=0.132N     P=0.464      P=0.520N     P=0.269N    |P=0.355      (e)          P=0.505      P=0.498      |
|LOGISTIC REGRESSION|     P=0.123N     P=0.512      P=0.570N     (e)         |(e)          (e)          P=0.504      P=0.500      |
|COCH-ARM / FISHERS |     P=0.125N     P=0.485      P=0.508N     P=0.268N    |P=0.356      (e)          P=0.492      P=0.489      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 25
                     Statistical Analysis of Primary Tumors 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                                                                                                            |
|     Adenoma                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     15/99 (15%)  25/100 (25%) 26/100 (26%) 23/100 (23%)|15/100 (15%) 20/100 (20%) 19/100 (19%) 20/100 (20%) |
|POLY-3 ADJUSTED (b)|     17.2%        30.0%        30.5%        27.4%       |17.3%        22.0%        21.4%        23.5%        |
|TERMINAL (d)       |     7/57 (12%)   15/46 (33%)  16/47 (34%)  13/48 (27%) |12/59 (20%)  16/68 (24%)  14/60 (23%)  17/61 (28%)  |
|FIRST INCIDENCE    |     583          589          604          561         |561          522          497          673          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.300      P=0.022 *    P=0.018 *    P=0.053     |P=0.311      P=0.369      P=0.317      P=0.259      |
|POLY 3             |     P=0.326      P=0.035 *    P=0.028 *    P=0.075     |P=0.292      P=0.271      P=0.311      P=0.205      |
|POLY 1.5           |     P=0.348      P=0.043 *    P=0.033 *    P=0.087     |P=0.298      P=0.253      P=0.298      P=0.201      |
|POLY 6             |     P=0.309      P=0.027 *    P=0.024 *    P=0.064     |P=0.302      P=0.298      P=0.330      P=0.223      |
|LOGISTIC REGRESSION|     P=0.321      P=0.039 *    P=0.033 *    P=0.085     |P=0.318      P=0.270      P=0.307      P=0.249      |
|COCH-ARM / FISHERS |     P=0.381      P=0.059      P=0.043 *    P=0.110     |P=0.353      P=0.229      P=0.286      P=0.229      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              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                                                                                                            |
|     Carcinoma                                                                                                                   |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    7/100 (7%)   4/100 (4%)   2/100 (2%)  |5/100 (5%)   3/100 (3%)   3/100 (3%)   3/100 (3%)   |
|POLY-3 ADJUSTED (b)|     1.2%         8.5%         4.8%         2.5%        |5.9%         3.4%         3.4%         3.5%         |
|TERMINAL (d)       |     1/57 (2%)    2/46 (4%)    2/47 (4%)    2/48 (4%)   |4/59 (7%)    3/68 (4%)    1/60 (2%)    1/61 (2%)    |
|FIRST INCIDENCE    |     736 (T)      619          687          736 (T)     |710          737 (T)      665          557          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.284N     P=0.024 *    P=0.146      P=0.440     |P=0.461N     P=0.286N     P=0.342N     P=0.343N     |
|POLY 3             |     P=0.280N     P=0.030 *    P=0.177      P=0.483     |P=0.463N     P=0.335N     P=0.344N     P=0.357N     |
|POLY 1.5           |     P=0.269N     P=0.032 *    P=0.180      P=0.491     |P=0.465N     P=0.346N     P=0.352N     P=0.366N     |
|POLY 6             |     P=0.290N     P=0.029 *    P=0.175      P=0.476     |P=0.454N     P=0.322N     P=0.333N     P=0.339N     |
|LOGISTIC REGRESSION|     P=0.271N     P=0.032 *    P=0.174      P=0.440     |P=0.462N     P=0.300N     P=0.341N     P=0.364N     |
|COCH-ARM / FISHERS |     P=0.254N     P=0.033 *    P=0.187      P=0.504     |P=0.447N     P=0.360N     P=0.360N     P=0.360N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 26
                     Statistical Analysis of Primary Tumors 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                                                                                                            |
|     Carcinoma or Adenoma                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     16/99 (16%)  31/100 (31%) 30/100 (30%) 25/100 (25%)|19/100 (19%) 22/100 (22%) 22/100 (22%) 23/100 (23%) |
|POLY-3 ADJUSTED (b)|     18.4%        36.8%        35.1%        29.8%       |21.9%        24.3%        24.6%        26.8%        |
|TERMINAL (d)       |     8/57 (14%)   17/46 (37%)  18/47 (38%)  15/48 (31%) |15/59 (25%)  18/68 (27%)  15/60 (25%)  18/61 (30%)  |
|FIRST INCIDENCE    |     583          589          604          561         |561          522          497          557          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.406      P=0.003 **   P=0.006 **   P=0.037 *   |P=0.318      P=0.544      P=0.404      P=0.343      |
|POLY 3             |     P=0.438      P=0.005 **   P=0.009 **   P=0.055     |P=0.305      P=0.422      P=0.401      P=0.283      |
|POLY 1.5           |     P=0.466      P=0.006 **   P=0.011 *    P=0.066     |P=0.306      P=0.397      P=0.382      P=0.273      |
|POLY 6             |     P=0.413      P=0.003 **   P=0.007 **   P=0.046 *   |P=0.323      P=0.456      P=0.430      P=0.314      |
|LOGISTIC REGRESSION|     P=0.438      P=0.006 **   P=0.011 *    P=0.061     |P=0.318      P=0.432      P=0.392      P=0.311      |
|COCH-ARM / FISHERS |     P=0.507      P=0.010 *    P=0.016 *    P=0.086     |P=0.361      P=0.363      P=0.363      P=0.301      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Uterus                                                                                                                           |
|     Leiomyosarcoma                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |2/100 (2%)   1/100 (1%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|                                                        |2.3%         1.1%         0.0%         0.0%         |
|TERMINAL (d)       |                                                        |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |                                                        |533          669          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.244N     P=0.480N     P=0.239N     P=0.239N     |
|POLY 3             |                                                        |P=0.248N     P=0.486N     P=0.235N     P=0.242N     |
|POLY 1.5           |                                                        |P=0.247N     P=0.492N     P=0.237N     P=0.244N     |
|POLY 6             |                                                        |P=0.248N     P=0.478N     P=0.233N     P=0.236N     |
|LOGISTIC REGRESSION|                                                        |P=0.175N     P=0.571N     P=0.221N     P=0.188N     |
|COCH-ARM / FISHERS |                                                        |P=0.241N     P=0.500N     P=0.249N     P=0.249N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 27
                     Statistical Analysis of Primary Tumors 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                                                                                                                           |
|     Polyp Stromal                                                                                                               |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |13/100 (13%) 11/100 (11%) 13/100 (13%) 13/100 (13%) |
|POLY-3 ADJUSTED (b)|                                                        |15.1%        12.2%        14.6%        14.9%        |
|TERMINAL (d)       |                                                        |9/59 (15%)   7/68 (10%)   6/60 (10%)   6/61 (10%)   |
|FIRST INCIDENCE    |                                                        |620          669          557          485          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.449      P=0.295N     P=0.543N     P=0.547N     |
|POLY 3             |                                                        |P=0.457      P=0.370N     P=0.548N     P=0.569N     |
|POLY 1.5           |                                                        |P=0.445      P=0.389N     P=0.565N     P=0.577      |
|POLY 6             |                                                        |P=0.485      P=0.345N     P=0.522N     P=0.529N     |
|LOGISTIC REGRESSION|                                                        |P=0.452      P=0.356N     P=0.570N     P=0.574      |
|COCH-ARM / FISHERS |                                                        |P=0.471      P=0.414N     P=0.583N     P=0.583N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Uterus                                                                                                                           |
|     Sarcoma Stromal                                                                                                             |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |0/100 (0%)   2/100 (2%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|                                                        |0.0%         2.2%         0.0%         0.0%         |
|TERMINAL (d)       |                                                        |0/59 (0%)    2/68 (3%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |                                                        |---          737 (T)      ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.374N     P=0.271      (e)          (e)          |
|POLY 3             |                                                        |P=0.362N     P=0.249      (e)          (e)          |
|POLY 1.5           |                                                        |P=0.366N     P=0.244      (e)          (e)          |
|POLY 6             |                                                        |P=0.355N     P=0.255      (e)          (e)          |
|LOGISTIC REGRESSION|                                                        |(e)          P=0.271      (e)          (e)          |
|COCH-ARM / FISHERS |                                                        |P=0.367N     P=0.249      (e)          (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 28
                     Statistical Analysis of Primary Tumors 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                                                                                                                           |
|     Sarcoma Stromal or Polyp Stromal                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |13/100 (13%) 12/100 (12%) 13/100 (13%) 13/100 (13%) |
|POLY-3 ADJUSTED (b)|                                                        |15.1%        13.3%        14.6%        14.9%        |
|TERMINAL (d)       |                                                        |9/59 (15%)   8/68 (12%)   6/60 (10%)   6/61 (10%)   |
|FIRST INCIDENCE    |                                                        |620          669          557          485          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.491      P=0.369N     P=0.543N     P=0.547N     |
|POLY 3             |                                                        |P=0.501      P=0.455N     P=0.548N     P=0.569N     |
|POLY 1.5           |                                                        |P=0.489      P=0.474N     P=0.565N     P=0.577      |
|POLY 6             |                                                        |P=0.531      P=0.428N     P=0.522N     P=0.529N     |
|LOGISTIC REGRESSION|                                                        |P=0.494      P=0.436N     P=0.570N     P=0.574      |
|COCH-ARM / FISHERS |                                                        |P=0.515      P=0.500N     P=0.583N     P=0.583N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Uterus                                                                                                                           |
|     Schwannoma Malignant                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |3/100 (3%)   0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|                                                        |3.5%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |                                                        |1/59 (2%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |                                                        |462          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.252N     P=0.114N     P=0.124N     P=0.130N     |
|POLY 3             |                                                        |P=0.249N     P=0.116N     P=0.120N     P=0.125N     |
|POLY 1.5           |                                                        |P=0.247N     P=0.119N     P=0.121N     P=0.126N     |
|POLY 6             |                                                        |P=0.251N     P=0.113N     P=0.118N     P=0.121N     |
|LOGISTIC REGRESSION|                                                        |P=0.116N     P=0.180N     P=0.093N     P=0.065N     |
|COCH-ARM / FISHERS |                                                        |P=0.240N     P=0.123N     P=0.123N     P=0.123N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 29
                     Statistical Analysis of Primary Tumors 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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Zymbal's Gland                                                                                                                   |
|     Carcinoma or Adenoma                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/100 (1%)   2/100 (2%)   0/100 (0%)   1/100 (1%)  |0/100 (0%)   0/100 (0%)   0/100 (0%)   1/100 (1%)   |
|POLY-3 ADJUSTED (b)|     1.2%         2.5%         0.0%         1.2%        |0.0%         0.0%         0.0%         1.2%         |
|TERMINAL (d)       |     0/57 (0%)    0/46 (0%)    0/47 (0%)    1/48 (2%)   |0/59 (0%)    0/68 (0%)    0/60 (0%)    0/61 (0%)    |
|FIRST INCIDENCE    |     701          733          ---          736 (T)     |---          ---          ---          409          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.615N     P=0.453      P=0.500N     P=0.736     |P=0.225      (e)          (e)          P=0.490      |
|POLY 3             |     P=0.608N     P=0.481      P=0.505N     P=0.748     |P=0.230      (e)          (e)          P=0.501      |
|POLY 1.5           |     P=0.604N     P=0.488      P=0.503N     P=0.753     |P=0.230      (e)          (e)          P=0.498      |
|POLY 6             |     P=0.612N     P=0.474      P=0.507N     P=0.743     |P=0.233      (e)          (e)          P=0.507      |
|LOGISTIC REGRESSION|     P=0.611N     P=0.472      P=0.503N     P=0.745     |P=0.533      (e)          (e)          P=0.743      |
|COCH-ARM / FISHERS |     P=0.597N     P=0.500      P=0.500N     P=0.751N    |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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|All Organs                                                                                                                       |
|     Leukemia: Lymphocytic, Monocytic, Mononuclear, or                                                                           |
|     Undifferentiated                                                                                                            |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     50/100 (50%) 44/100 (44%) 47/100 (47%) 50/100 (50%)|20/100 (20%) 18/100 (18%) 24/100 (24%) 25/100 (25%) |
|POLY-3 ADJUSTED (b)|     53.1%        50.0%        52.0%        56.2%       |22.7%        19.6%        26.4%        28.8%        |
|TERMINAL (d)       |     24/57 (42%)  18/46 (39%)  17/47 (36%)  22/48 (46%) |11/59 (19%)  11/68 (16%)  11/60 (18%)  16/61 (26%)  |
|FIRST INCIDENCE    |     303          533          479          410         |495          498          488          579          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.265      P=0.519      P=0.459      P=0.288     |P=0.163      P=0.290N     P=0.366      P=0.310      |
|POLY 3             |     P=0.265      P=0.393N     P=0.502N     P=0.390     |P=0.121      P=0.375N     P=0.342      P=0.223      |
|POLY 1.5           |     P=0.297      P=0.335N     P=0.459N     P=0.454     |P=0.125      P=0.398N     P=0.322      P=0.217      |
|POLY 6             |     P=0.236      P=0.450N     P=0.540N     P=0.333     |P=0.128      P=0.346N     P=0.374      P=0.249      |
|LOGISTIC REGRESSION|     P=0.314      P=0.258N     P=0.390N     P=0.545     |P=0.146      P=0.436N     P=0.304      P=0.236      |
|COCH-ARM / FISHERS |     P=0.340      P=0.239N     P=0.389N     P=0.556N    |P=0.166      P=0.429N     P=0.304      P=0.249      |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 30
                     Statistical Analysis of Primary Tumors 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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|All Organs                                                                                                                       |
|     Mesothelioma: Benign, Malignant, NOS                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/100 (4%)   6/100 (6%)   5/100 (5%)   6/100 (6%)  |0/100 (0%)   0/100 (0%)   1/100 (1%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     4.6%         7.2%         5.9%         7.2%        |0.0%         0.0%         1.1%         0.0%         |
|TERMINAL (d)       |     2/57 (4%)    1/46 (2%)    1/47 (2%)    2/48 (4%)   |0/59 (0%)    0/68 (0%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |     658          581          568          488         |---          ---          737 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.397      P=0.305      P=0.449      P=0.309     |P=0.771N     (e)          P=0.503      (e)          |
|POLY 3             |     P=0.415      P=0.350      P=0.492      P=0.349     |P=0.771N     (e)          P=0.505      (e)          |
|POLY 1.5           |     P=0.423      P=0.357      P=0.494      P=0.358     |P=0.771N     (e)          P=0.502      (e)          |
|POLY 6             |     P=0.410      P=0.344      P=0.493      P=0.343     |P=0.769N     (e)          P=0.508      (e)          |
|LOGISTIC REGRESSION|     P=0.449      P=0.373      P=0.504      P=0.390     |(e)          (e)          P=0.503      (e)          |
|COCH-ARM / FISHERS |     P=0.435      P=0.374      P=0.500      P=0.374     |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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|All Organs                                                                                                                       |
|     Mesothelioma: Malignant                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/100 (4%)   6/100 (6%)   5/100 (5%)   6/100 (6%)  |0/100 (0%)   0/100 (0%)   1/100 (1%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     4.6%         7.2%         5.9%         7.2%        |0.0%         0.0%         1.1%         0.0%         |
|TERMINAL (d)       |     2/57 (4%)    1/46 (2%)    1/47 (2%)    2/48 (4%)   |0/59 (0%)    0/68 (0%)    1/60 (2%)    0/61 (0%)    |
|FIRST INCIDENCE    |     658          581          568          488         |---          ---          737 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.397      P=0.305      P=0.449      P=0.309     |P=0.771N     (e)          P=0.503      (e)          |
|POLY 3             |     P=0.415      P=0.350      P=0.492      P=0.349     |P=0.771N     (e)          P=0.505      (e)          |
|POLY 1.5           |     P=0.423      P=0.357      P=0.494      P=0.358     |P=0.771N     (e)          P=0.502      (e)          |
|POLY 6             |     P=0.410      P=0.344      P=0.493      P=0.343     |P=0.769N     (e)          P=0.508      (e)          |
|LOGISTIC REGRESSION|     P=0.449      P=0.373      P=0.504      P=0.390     |(e)          (e)          P=0.503      (e)          |
|COCH-ARM / FISHERS |     P=0.435      P=0.374      P=0.500      P=0.374     |P=0.767N     (e)          P=0.500      (e)          |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 31
                     Statistical Analysis of Primary Tumors 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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|All Organs                                                                                                                       |
|     Benign Tumors                                                                                                               |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     99/100 (99%) 97/100 (97%) 97/100 (97%) 98/100 (98%)|92/100 (92%) 94/100 (94%) 87/100 (87%) 85/100 (85%) |
|POLY-3 ADJUSTED (b)|     99.8%        99.4%        99.4%        99.5%       |95.6%        96.2%        90.8%        91.6%        |
|TERMINAL (d)       |     57/57 (100%) 46/46 (100%) 47/47 (100%) 48/48 (100%)|58/59 (98%)  66/68 (97%)  57/60 (95%)  57/61 (93%)  |
|FIRST INCIDENCE    |     303          329          463          410         |533          508          429          485          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.300      P=0.114      P=0.187      P=0.141     |P=0.253N     P=0.155N     P=0.211N     P=0.140N     |
|POLY 3             |     P=0.876N     P=0.906N     P=0.926N     P=0.941N    |P=0.131N     P=0.564      P=0.124N     P=0.182N     |
|POLY 1.5           |     P=0.712N     P=0.561N     P=0.536N     P=0.677N    |P=0.123N     P=0.482      P=0.146N     P=0.187N     |
|POLY 6             |     P=1.000N     P=1.000N     P=1.000N     P=1.000N    |P=0.098N     P=0.668      P=0.110N     P=0.137N     |
|LOGISTIC REGRESSION|     P=0.640N     P=0.514N     P=0.285N     P=0.540N    |P=0.213N     P=0.622N     P=0.131N     P=0.239N     |
|COCH-ARM / FISHERS |     P=0.597      P=0.311N     P=0.311N     P=0.500N    |P=0.035N*    P=0.391      P=0.178N     P=0.091N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|All Organs                                                                                                                       |
|     Malignant Tumors                                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     66/100 (66%) 59/100 (59%) 61/100 (61%) 66/100 (66%)|40/100 (40%) 41/100 (41%) 38/100 (38%) 39/100 (39%) |
|POLY-3 ADJUSTED (b)|     68.1%        64.7%        65.0%        69.4%       |43.4%        43.4%        41.3%        44.1%        |
|TERMINAL (d)       |     32/57 (56%)  23/46 (50%)  23/47 (49%)  26/48 (54%) |22/59 (37%)  25/68 (37%)  19/60 (32%)  24/61 (39%)  |
|FIRST INCIDENCE    |     303          466          477          410         |462          498          488          409          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.232      P=0.471      P=0.478      P=0.255     |P=0.514N     P=0.374N     P=0.387N     P=0.435N     |
|POLY 3             |     P=0.325      P=0.365N     P=0.380N     P=0.483     |P=0.477      P=0.555N     P=0.443N     P=0.523      |
|POLY 1.5           |     P=0.319      P=0.302N     P=0.344N     P=0.512     |P=0.502      P=0.534      P=0.450N     P=0.531      |
|POLY 6             |     P=0.321      P=0.414N     P=0.409N     P=0.454     |P=0.474      P=0.513N     P=0.420N     P=0.543      |
|LOGISTIC REGRESSION|     P=0.296      P=0.198N     P=0.263N     P=0.482N    |P=0.493N     P=0.454      P=0.446N     P=0.525N     |
|COCH-ARM / FISHERS |     P=0.291      P=0.190N     P=0.279N     P=0.559N    |P=0.461N     P=0.500      P=0.442N     P=0.500N     |
|=================================================================================================================================|
       Date:  01/28/98                           EXPERIMENT: 89029 TEST: 05                                            Page 32
                     Statistical Analysis of Primary Tumors 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                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|All Organs                                                                                                                       |
|     Malignant and Benign Tumors                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |     #            #            #            #           |#            #            #            #            |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     100/100 (100%98/100 (98%) 98/100 (98%) 100/100 (100%98/100 (98%) 97/100 (97%) 95/100 (95%) 91/100 (91%) |
|POLY-3 ADJUSTED (b)|     100.0%       99.7%        99.7%        100.0%      |99.1%        97.6%        97.6%        96.9%        |
|TERMINAL (d)       |     57/57 (100%) 46/46 (100%) 47/47 (100%) 48/48 (100%)|59/59 (100%) 66/68 (97%)  60/60 (100%) 59/61 (97%)  |
|FIRST INCIDENCE    |     303          329          463          410         |462          498          429          409          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.261      P=0.116      P=0.189      (e)         |P=0.317N     P=0.089N     P=0.288N     P=0.148N     |
|POLY 3             |     P=0.957      P=0.985N     P=0.999N     (e)         |P=0.305N     P=0.371N     P=0.349N     P=0.234N     |
|POLY 1.5           |     P=0.608      P=0.655N     P=0.636N     (e)         |P=0.176N     P=0.429N     P=0.288N     P=0.150N     |
|POLY 6             |     P=1.000      P=1.000N     P=1.000N     (e)         |P=0.362N     P=0.304N     P=0.450N     P=0.262N     |
|LOGISTIC REGRESSION|     P=0.480      P=0.360N     P=0.123N     (e)         |P=0.280N     P=0.394N     P=0.255N     P=0.225N     |
|COCH-ARM / FISHERS |     P=0.314      P=0.249N     P=0.249N     (e)         |P=0.013N*    P=0.500N     P=0.222N     P=0.029N*    |
|=================================================================================================================================|

(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).