title: The pain of Sognsvann walks.
authors.forename: H R
authors.initials: HR
authors.lastname: Eriksen
authors.forename: H
authors.initials: H
authors.lastname: Ursin
mesh_terms: D002908:Chronic Disease; D015444:Exercise; D005081:Exercise Therapy / Q000191:economics; D006801:Humans; D017116:Low Back Pain / Q000523:psychology / Q000534:rehabilitation*; D009664:Norway; D026741:Physical Therapy Modalities / Q000191:economics; D012648:Self Care / Q000191:economics; D018582:Sick Leave / Q000706:statistics & numerical data