[Epidural morphine for pain relief].
D000368:Aged; D004824:Epidural Space; D005260:Female; D006801:Humans; D007278:Injections, Spinal; D008297:Male; D008875:Middle Aged; D009020:Morphine / Q000008:administration & dosage*; D010146:Pain / Q000188:drug therapy*; D010148:Intractable Pain / Q000188:drug therapy; D010149:Postoperative Pain / Q000188:drug therapy
D009020:Morphine