title: National variations in back pain: ecological fallacy or cultural differences?
authors.affiliation: Finnish Institute of Occupational Health, Kuopio, Finland. jos.verbeek@ttl.fi.
authors.forename: Jos
authors.initials: J
authors.lastname: Verbeek
authors.forename: Alex
authors.initials: A
authors.lastname: Burdorf
mesh_terms: D005260:Female; D006801:Humans; D008019:Life Style; D008297:Male; D059352:Musculoskeletal Pain / Q000453:epidemiology*; D009784:Occupational Diseases / Q000453:epidemiology*