1. Department of Obstetrics/Gynecology Joint Laboratory of Reproductive Medicine (SCU‐CUHK) Key Laboratory of Obstetric Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education West China Second University Hospital Sichuan University Chengdu China
2. Department of Obstetrics and Gynecology West China Second University Hospital Sichuan University Chengdu China
3. The Reproductive Medical Center Department of Obstetrics and Gynecology West China Second University Hospital Sichuan University Chengdu China