title: Variation in baseline sister chromatid exchange frequencies in humans.
mesh_terms: D001973:Bromodeoxyuridine / Q000494:pharmacology; D004784:Environmental Monitoring; D006801:Humans; D008214:Lymphocytes / Q000648:ultrastructure; D012016:Reference Values; D012854:Sister Chromatid Exchange / Q000187:drug effects*; D012907:Smoking; D014481:United States
chemical_list: D001973:Bromodeoxyuridine