title: [Chronic backpain with and without organic findings. Discriminating factors].
authors.forename: O A
authors.initials: OA
authors.lastname: Kogstad
authors.forename: O O
authors.initials: OO
authors.lastname: Aalen
mesh_terms: D001416:Back Pain / Q000175:diagnosis / Q000209:etiology* / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male
vernacular_title: Kroniske ryggsmerter med og uten organiske funn. Diskriminerende faktorer.