Corresponding Author

Department of Gynecology and Obstetrics, International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China

Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China

Shanghai Municipal Key Clinical Specialty, Shanghai, China

Correspondence

Feng Sun, Department of Gynecology and Obstetrics, International Peace Maternity and Child Health Hospital, 910 Hengshan Road, Xuhui, Shanghai 200030, China.

Email: sunfeng0711@126.com