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    • Lung - Hypertrophy, Smooth Muscle - Gallery

    Image of hypertrophy, smooth muscle in the lung from a male F344/N rat in a chronic study
    Lung, Bronchiole, Smooth muscle - Hypertrophy in a male F344/N rat from a chronic study. The smooth muscle around this bronchiole is markedly thickened; there is concurrent epithelial hyperplasia.