1. Reproductive Medical Center of Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, 197 Ruijin 2nd Road, Shanghai, China
2. Department of Obstetrics and Gynaecology, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
3. Shanghai Key Laboratory of Reproductive Medicine, 280 South Chongqing Road, Shanghai, China