title: The evolution of management of postoperative pain.
authors.forename: R L
authors.initials: RL
authors.lastname: Rauck
mesh_terms: D015360:Analgesia, Epidural / Q000191:economics; D003365:Costs and Cost Analysis; D005283:Fentanyl / Q000008:administration & dosage*; D006801:Humans; D009020:Morphine / Q000008:administration & dosage*; D010149:Postoperative Pain / Q000188:drug therapy*; D012646:Self Administration / Q000191:economics
chemical_list: D009020:Morphine; D005283:Fentanyl