title: Confounding from smoking in occupational epidemiology.
authors.affiliation: Department of Occupational Medicine, University Hospital, Linköping, Sweden.
authors.forename: O
authors.initials: O
authors.lastname: Axelson
mesh_terms: D006801:Humans; D009784:Occupational Diseases / Q000453:epidemiology* / Q000209:etiology; D012907:Smoking / Q000453:epidemiology*