1. Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei China
2. Shandong Key Laboratory of Reproductive Medicine, Department of Obstetrics and Gynecology Shandong Provincial Hospital Affiliated to Shandong First Medical University Jinan Shandong China
3. Department of Obstetrics and Gynecology, Zhongnan Hospital Wuhan University Wuhan Hubei China
4. Department of Reproductive Medicine, Wuhan No.1 Hospital, Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei China