title: Psychological characteristics and patient-controlled analgesia.
authors.forename: V J
authors.initials: VJ
authors.lastname: Thomas
authors.forename: M
authors.initials: M
authors.lastname: Heath
mesh_terms: D016058:Analgesia, Patient-Controlled / Q000523:psychology*; D006801:Humans; D010149:Postoperative Pain / Q000188:drug therapy*