title: The formation of variants with a reversion of properties of transformed cells. 8. In vitro limited life span of variants isolated from tumors.
mesh_terms: D000818:Animals; D002273:Carcinogens / Q000494:pharmacology*; D002455:Cell Division / Q000187:drug effects; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects; D002471:Cell Transformation, Neoplastic / Q000187:drug effects*; D002999:Clone Cells; D006224:Cricetinae; D003470:Culture Media; D004622:Embryo, Mammalian; D066298:In Vitro Techniques; D009368:Neoplasm Transplantation; D009374:Neoplasms, Experimental / Q000139:chemically induced*; D009602:Nitrosamines / Q000494:pharmacology*; D014184:Transplantation, Homologous
chemical_list: D002273:Carcinogens; D003470:Culture Media; D009602:Nitrosamines