title: [Effect of vitamin B 12  on the induction of skin tumors in mice].
mesh_terms: D000818:Animals; D008297:Male; D008722:Methods; D008748:Methylcholanthrene; D051379:Mice; D009374:Neoplasms, Experimental / Q000139:chemically induced; D010212:Papilloma / Q000139:chemically induced*; D012878:Skin Neoplasms / Q000139:chemically induced*; D014805:Vitamin B 12 / Q000494:pharmacology*
chemical_list: D008748:Methylcholanthrene; D014805:Vitamin B 12
vernacular_title: Vliianie vitamina B 12  na induktsiiu opukholeĭ kozhi u mysheĭ.