title: Ras oncogenes in human tumours: identification, mechanism of activation and cooperative role in transformation.
mesh_terms: D000818:Animals; D002471:Cell Transformation, Neoplastic; D002478:Cells, Cultured; D005347:Fibroblasts / Q000166:cytology; D006801:Humans; D009369:Neoplasms / Q000235:genetics*; D009857:Oncogenes; D051381:Rats; D014162:Transfection