Fan Yang
Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu, China
Xiaorong Qi
Department of Obstetrics & Gynecology, West China Second Hospital, Sichuan, China
Li Wan
Department of Obstetrics & Gynecology, West China Second Hospital, Sichuan, China
Ce Bian
Department of Obstetrics & Gynecology, West China Second Hospital, Sichuan, China
Lei He
Department of Obstetrics & Gynecology, West China Second Hospital, Sichuan, China
Zhi Li
College of Electronics and Information Engineering, Sichuan University, Sichuan, China
Lan Wu
Department of Anesthesiology, West China Second University Hospital, Sichuan University, Sichuan, China