title: [The influence of vitamin A on cutaneous carcinogenesis in mice induced by 20-methylcholanthrene. 2. Electron microscopy studies].
mesh_terms: D000818:Animals; D002294:Carcinoma, Squamous Cell / Q000139:chemically induced / Q000648:ultrastructure*; D008297:Male; D008748:Methylcholanthrene; D051379:Mice; D008854:Microscopy, Electron; D010212:Papilloma / Q000139:chemically induced / Q000648:ultrastructure*; D012878:Skin Neoplasms / Q000139:chemically induced / Q000648:ultrastructure*; D014801:Vitamin A / Q000494:pharmacology*
chemical_list: D014801:Vitamin A; D008748:Methylcholanthrene