Early changes in the transitional epithelium of rat urinary bladder induced by nitrosomethylurea.
D000818:Animals; D003497:Cyclic N-Oxides; D004848:Epithelium / Q000187:drug effects; D008854:Microscopy, Electron; D009336:Necrosis / Q000139:chemically induced; D009603:Nitroso Compounds / Q000494:pharmacology*; D051381:Rats; D001743:Urinary Bladder / Q000187:drug effects*; D001749:Urinary Bladder Neoplasms / Q000139:chemically induced*
D003497:Cyclic N-Oxides; D009603:Nitroso Compounds