title: The superiority of epidural opioids for postoperative analgesia--fact or fallacy?
authors.forename: E W
authors.initials: EW
authors.lastname: Cheam
authors.forename: M
authors.initials: M
authors.lastname: Morgan
mesh_terms: D015360:Analgesia, Epidural / Q000379:methods*; D000701:Analgesics, Opioid / Q000009:adverse effects / Q000627:therapeutic use*; D018849:Controlled Clinical Trials as Topic; D006801:Humans; D010149:Postoperative Pain / Q000188:drug therapy*
chemical_list: D000701:Analgesics, Opioid