title: Transforming ras oncogenes and multistage carcinogenesis.
mesh_terms: D000818:Animals; D002273:Carcinogens / Q000494:pharmacology; D002471:Cell Transformation, Neoplastic; D003043:Cocarcinogenesis; D006801:Humans; D051379:Mice; D009154:Mutation; D009369:Neoplasms / Q000209:etiology / Q000235:genetics*; D009857:Oncogenes; D010212:Papilloma / Q000235:genetics; D012878:Skin Neoplasms / Q000235:genetics; D013997:Time Factors
chemical_list: D002273:Carcinogens