title: Effect of epidural morphine on urinary catecholamine excretion during postoperative period.
mesh_terms: D000328:Adult; D002395:Catecholamines / Q000652:urine*; D004824:Epidural Space; D006801:Humans; D007267:Injections; D008875:Middle Aged; D009020:Morphine / Q000008:administration & dosage / Q000627:therapeutic use*; D010149:Postoperative Pain / Q000188:drug therapy*
chemical_list: D002395:Catecholamines; D009020:Morphine