title: Letters to the editor: Leukemia and potential benzene exposure.
mesh_terms: D001554:Benzene / Q000506:poisoning*; D004781:Environmental Exposure; D006801:Humans; D007938:Leukemia / Q000139:chemically induced*; D009784:Occupational Diseases / Q000139:chemically induced*; D010578:Petroleum; D012189:Retrospective Studies
chemical_list: D010578:Petroleum; D001554:Benzene