title: [The effective use of epidural morphine for post-operative pain relief after a thoracotomy].
mesh_terms: D000328:Adult; D000368:Aged; D000767:Anesthesia, Epidural; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009020:Morphine / Q000008:administration & dosage; D010149:Postoperative Pain / Q000188:drug therapy*; D013903:Thoracic Surgery
chemical_list: D009020:Morphine