[Continuous sacral epidural analgesic block in cervical dystocia].
D000700:Analgesics; D000767:Anesthesia, Epidural; D000773:Anesthesia, Obstetrical; D004420:Dystocia; D005260:Female; D006801:Humans; D011247:Pregnancy
D000700:Analgesics
ANESTHESIA, OBSTETRICAL; DYSTOCIA