The effectiveness of electro-acupuncture combined with dyclonine hydrochloride in relieving the side effects of gastroscopy: a controlled trial

Jian-Ming Chen, Dong-Dong Li, Yi-Shan Chen, Bo Lian, Xiao-Peng Wang, Yu-Hong Guo, Xiao-Long Xu, Po Huang, Teng-Fei Chen, Yang Liu, Qing-Quan Liu