title: [What is chronic pain?].
authors.affiliation: DRK Schmerz-Zentrum Mainz, Mainz. nilges@uni-mainz.de
authors.forename: P
authors.initials: P
authors.lastname: Nilges
authors.forename: B
authors.initials: B
authors.lastname: Nagel
mesh_terms: D002908:Chronic Disease; D006801:Humans; D008960:Models, Psychological; D010146:Pain / Q000145:classification / Q000209:etiology / Q000523:psychology*; D059408:Pain Management; D016896:Treatment Outcome