[Bisegmentary alternating peridural anesthesia].
D000758:Anesthesia; D000767:Anesthesia, Epidural; D000775:Anesthesia, Spinal; D000776:Anesthesiology; D006801:Humans; D010388:Pelvis / Q000601:surgery*
ANESTHESIA, SPINAL; PELVIS/surgery
Anestesia peridural alternante bisegmentaria.