Epidural fentanyl/bupivacaine mixtures for obstetric analgesia.
D000328:Adult; D000767:Anesthesia, Epidural; D000773:Anesthesia, Obstetrical; D002045:Bupivacaine; D004338:Drug Combinations; D005260:Female; D005283:Fentanyl; D006801:Humans; D011247:Pregnancy
D004338:Drug Combinations; D005283:Fentanyl; D002045:Bupivacaine