Institution: | Department of Obstetrics and Gynecology, Shanghai Jiao Tong University Affiliated First People's Hospital, No. 85 Wujin Road, Shanghai 200080, China;;Departments of Medicine and Medical Biophysics, University of Toronto, Toronto, Ontario M5S1A8, Canada;;Department of Gynecology, Dalian Obstetrics and Gynecology Hospital, No. 1 Dunhuang Road, Dalian 116033, China |