1. Reproductive Medical Center of Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, 197 Ruijin 2nd Road, Shanghai 200025, China
2. Department of Obstetrics and Gynaecology, BC Children’s Hospital Research Institute, University of British Columbia, Room 317, 950 West 28 Avenue, Vancouver, British Columbia, Canada V5Z 4H4
3. Shanghai Key Laboratory of Reproductive Medicine, 280 South Chongqing Road, Shanghai 200025, China