title: The formation of variants with a reversion of properties of transformed cells. II. In vitro formation of variants from polyoma-transformed cells.
mesh_terms: D000818:Animals; D002455:Cell Division; D002471:Cell Transformation, Neoplastic; D002999:Clone Cells; D006224:Cricetinae; D046508:Culture Techniques; D004622:Embryo, Mammalian; D014644:Genetic Variation; D009374:Neoplasms, Experimental; D011120:Polyomavirus; D011830:Radiation Effects; D013696:Temperature