Intraspinal narcotics in obstetrics.
D000767:Anesthesia, Epidural; D000773:Anesthesia, Obstetrical / Q000379:methods*; D005260:Female; D006801:Humans; D007278:Injections, Spinal; D009294:Narcotics / Q000008:administration & dosage* / Q000009:adverse effects; D010149:Postoperative Pain / Q000188:drug therapy; D011247:Pregnancy
D009294:Narcotics