title: Sister-chromatid exchanges but not mutations decrease with time in arrested Chinese hamster ovary cells after treatment with ethylnitrosourea.
mesh_terms: D000818:Animals; D002455:Cell Division; D002460:Cell Line; D006224:Cricetinae; D003412:Cricetulus; D003434:Crossing Over, Genetic / Q000187:drug effects*; D005038:Ethylnitrosourea / Q000494:pharmacology*; D009154:Mutation / Q000187:drug effects*; D009607:Nitrosourea Compounds / Q000494:pharmacology*; D012854:Sister Chromatid Exchange / Q000187:drug effects*; D013997:Time Factors
chemical_list: D009607:Nitrosourea Compounds; D005038:Ethylnitrosourea