Li Ting, Liu Zhao-Hui, Li Kui, Bai Hui-Hui
Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China.
Department of Obstetrics and Gynecology, Beijing United Family Healthcare, Beijing 100015, China.
Chin Med J (Engl). 2019 May 5;132(9):1100-1103. doi: 10.1097/CM9.0000000000000211.