1. Center of Reproductive Medicine, Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, No. 39 Huaxiang Road, Tiexi District, Shenyang, Liaoning 110022, China
2. Key Laboratory of Reproductive Dysfunction Disease and Fertility Remodeling of Liaoning Province, Shenyang, Liaoning 110022, China
3. Department of Obstetrics and Gynaecology, BC Children’s Hospital Research Institute, University of British Columbia, Vancouver, British Columbia V5Z4H4, Canada
4. Reproductive Medicine Center, Department of Obstetrics and Gynecology, China Medical University Hospital, Taichung 404327, Taiwan