| Authors: |
Cui QL; Department of Obstetrics and Gynecology, Sichuan Provincial Maternity and Child Health Care Hospital, Chengdu City, China.; Department of Obstetrics and Gynecology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou City, China., He YS; Department of Obstetrics and Gynecology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou City, China., Wang XH; Department of Obstetrics and Gynecology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou City, China., Li C; Department of Obstetrics and Gynecology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou City, China., Wang G; Department of Obstetrics and Gynecology, Sichuan Provincial Maternity and Child Health Care Hospital, Chengdu City, China., Chen M; Department of Obstetrics and Gynecology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou City, China., Chen SM; Department of Obstetrics and Gynecology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen City, China. |