Ultrasound-guided bilateral pudendal nerve blocks of nulliparous women with epidural labour analgesia in the second stage of labour: a randomised, double-blind, controlled trial

by Jialing Xu, Riyong Zhou, Weijue Su, Shi Wang, Yun Xia, Thomas Papadimos, Junzhao Zhao, Xuzhong Xu
Published 2020-08-01