Journal of Southern Medical University
Prolonged epidural labor analgesia increases risks of epidural analgesia failure for conversion to cesarean section
ZHU Siying, WEI Dayuan, ZHANG Dan, JIA Fei, LIU Bo, ZHANG Jian
Journal of Southern Medical University . 2022, (8): 1244 -1249 .  DOI: 10.12122/j.issn.1673-4254.2022.08.18