Continuous lumbar epidural analgesia for labour and delivery.
D000767:Anesthesia, Epidural; D000773:Anesthesia, Obstetrical; D001946:Breech Presentation; D036861:Delivery, Obstetric / Q000379:methods; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007231:Infant, Newborn; D007746:Labor Presentation; D007743:Labor, Obstetric; D011247:Pregnancy; D011446:Prospective Studies