1. Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital, Tong Ji University School of Medicine, Shanghai, China (mainland)
2. Department of Gynecology and Obstetrics, Shanghai First Maternity and Infant Hospital, Tong Ji University School of Medicine, Shanghai, China (mainland)
3. Department of Gynecology and Obstetrics, International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China (mainland)
4. Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, The International Peace Maternity and Child Health Hospital, Shanghai, China (mainland)