title: Caudal injections for postoperative analgesia in children.
authors.forename: W A
authors.initials: WA
authors.lastname: Marchant
authors.forename: A E
authors.initials: AE
authors.lastname: Black
mesh_terms: D015360:Analgesia, Epidural; D000701:Analgesics, Opioid / Q000008:administration & dosage; D006801:Humans; D010149:Postoperative Pain / Q000188:drug therapy*; D014147:Tramadol / Q000008:administration & dosage
chemical_list: D000701:Analgesics, Opioid; D014147:Tramadol