title: Cytogenetic study of workers exposed to benzene.
mesh_terms: D000328:Adult; D000367:Age Factors; D001554:Benzene / Q000633:toxicity*; D002869:Chromosome Aberrations; D004781:Environmental Exposure; D004812:Epidemiologic Methods; D006801:Humans; D008214:Lymphocytes / Q000187:drug effects* / Q000648:ultrastructure; D008677:Metaphase; D008875:Middle Aged; D010636:Phenols / Q000652:urine; D013997:Time Factors
chemical_list: D010636:Phenols; D001554:Benzene