title: PCA or PAA?
authors.forename: H
authors.initials: H
authors.lastname: Owen
authors.forename: L E
authors.initials: LE
authors.lastname: Mather
mesh_terms: D000700:Analgesics / Q000008:administration & dosage*; D006801:Humans; D007262:Infusions, Intravenous; D010149:Postoperative Pain / Q000188:drug therapy*; D012646:Self Administration
chemical_list: D000700:Analgesics