title: [Reduced opioid efficacy in chronic pain of support and locomotion systems].
authors.affiliation: Orthopädische Universitätsklinik Heidelberg.
authors.forename: Cora M
authors.initials: CM
authors.lastname: Gärtner
authors.forename: Marcus
authors.initials: M
authors.lastname: Schiltenwolf
mesh_terms: D000701:Analgesics, Opioid / Q000627:therapeutic use*; D018771:Arthralgia / Q000175:diagnosis / Q000188:drug therapy; D001416:Back Pain / Q000175:diagnosis / Q000188:drug therapy; D002908:Chronic Disease; D004361:Drug Tolerance; D006801:Humans; D009068:Movement; D019547:Neck Pain / Q000175:diagnosis / Q000188:drug therapy; D010146:Pain / Q000175:diagnosis* / Q000188:drug therapy*; D011187:Posture; D016896:Treatment Outcome
chemical_list: D000701:Analgesics, Opioid