[Experience in painless labor by continuous epidural anesthesia of the lumbar region].
D000765:Anesthesia, Conduction; D000767:Anesthesia, Epidural; D000773:Anesthesia, Obstetrical; D005260:Female; D005333:Fetus / Q000187:drug effects; D006801:Humans; D008161:Lumbosacral Region; D011247:Pregnancy