title: Sister chromatid exchange frequency correlates with age, sex and cigarette smoking in a 5-year material of 553 healthy adults.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D008214:Lymphocytes / Q000166:cytology; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D012854:Sister Chromatid Exchange; D012907:Smoking