1. Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Shanghai University, Wenzhou, PR China
2. Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, PR China
3. Department of Wenzhou Key Laboratory of Gynecology and Obstetrics, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People’s Hospital, Wenzhou, PR China
4. Department of Clinical Laboratory, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou Peoples Hospital, Wenzhou, PR China
5. Department of Obstetrics and Gynecology, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou People’s Hospital, Wenzhou, PR China