WEI-ZEN SUNWEI-ZEN SUN2018-09-102018-09-102015-03http://europepmc.org/abstract/med/25736588http://scholars.lib.ntu.edu.tw/handle/123456789/390287A comparison of spinal and epidural anesthesia for cesarean section following epidural labor analgesia: A retrospective cohort study.journal article10.1016/j.aat.2015.01.003