The influence of lumbar epidural analgesia in labor on mode of delivery.
D000767:Anesthesia, Epidural / Q000379:methods*; D002585:Cesarean Section; D036861:Delivery, Obstetric / Q000379:methods*; D005260:Female; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D008161:Lumbosacral Region; D011247:Pregnancy; D012189:Retrospective Studies