[Ultrastructural study of 20-methylcholanthrene-induced skin-carcinogenesis, especially on the early changes].
D000818:Animals; D002277:Carcinoma / Q000473:pathology*; D008297:Male; D008748:Methylcholanthrene; D051379:Mice; D008854:Microscopy, Electron; D012878:Skin Neoplasms / Q000139:chemically induced / Q000473:pathology*
D008748:Methylcholanthrene