1. Medical Center of Diagnosis and Treatment for Cervical Diseases, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
2. Department of Obstetrics, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
3. Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Shanghai, China
4. Department of Clinical Epidemiology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China