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High-grade muscle-invasive bladder cancer induced by BBN treatment at 17 weeks without gold injection. (A) H&E, 40×; (B) gold enhanced, 40×; (C) H&E, 100×; (D) gold enhanced, 100×; (E) H&E, 200×; (F) gold enhanced, 200×.
Abbreviations: H&E, hematoxylin and eosin; BBN, N-butyl-N-(4-hydroxybutyl)nitrosamine.
