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A. Control group. B. Treatment group. The mammary stroma showed the formation of new epithelial cells that were cancer cells and spread to surrounding tissues and hyperplasia with mitotic fibrocytes in the dermis. (a) alveoli; (d) ducts; (s) stroma. Scale bar, 100 μm. DMBA, 7,12-dimethylbenz [a]anthracene.
