title: Opioids in chronic pain.
authors.affiliation: Oxford Regional Pain Relief Unit, Abingdon Hospital, Oxfordshire.
authors.forename: H J
authors.initials: HJ
authors.lastname: McQuay
mesh_terms: D000818:Animals; D002908:Chronic Disease; D006801:Humans; D009294:Narcotics / Q000627:therapeutic use*; D010146:Pain / Q000188:drug therapy*
chemical_list: D009294:Narcotics