[Determination of the resistance at the lumbar epidural space during cesarean section].
D000328:Adult; D002585:Cesarean Section; D004058:Diffusion; D004824:Epidural Space / Q000502:physiology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011312:Pressure; D013115:Spinal Canal / Q000502:physiology*