title: Chronic pain: mechanisms and treatment.
abstract: Chronic pain has been arbitrarily defined as any pain lasting for more than twelve weeks. Chronic pain has also been defined as pain that continues beyond the time in which recovery might usually be expected. This suggests that the cause of pain may change, as it evolves into chronic pain.
authors.affiliation: Birmingham Heartlands and Solihull NHS Trust, Solihull Hospital, Lode Lane, B91 2JL, UK.
authors.forename: Timothy D
authors.initials: TD
authors.lastname: Priest
authors.forename: Barbara
authors.initials: B
authors.lastname: Hoggart
mesh_terms: D000818:Animals; D002490:Central Nervous System / Q000503:physiopathology; D002908:Chronic Disease; D006801:Humans; D010146:Pain / Q000188:drug therapy* / Q000503:physiopathology*; D017933:Peripheral Nervous System / Q000503:physiopathology