1. Department of Gynecology and Obstetrics Renmin Hospital of Wuhan University Wuhan China
2. Department of Obstetrics and Gynecology Ultrasound Renmin Hospital of Wuhan University Wuhan China
3. Department of Clinical Laboratory Renmin Hospital of Wuhan University Wuhan China
4. State Key Laboratory of Cardiovascular Disease Fuwai Hospital National Center for Cardiovascular Diseases Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
5. Reproductive Medical Center Renmin Hospital of Wuhan University Wuhan China
6. Department of Obstetrics and Gynecology Peking University People’s Hospital Beijing China