title: Unexpected problems with patient controlled analgesia.
authors.forename: M
authors.initials: M
authors.lastname: Farmer
authors.forename: N J
authors.initials: NJ
authors.lastname: Harper
mesh_terms: D016058:Analgesia, Patient-Controlled / Q000009:adverse effects*; D004868:Equipment Failure; D005260:Female; D006801:Humans; D008875:Middle Aged; D010149:Postoperative Pain / Q000188:drug therapy; D010349:Patient Compliance