1. Center for Reproductive Medicine, Jiangxi Key Laboratory of Women’s Reproductive Health, Jiangxi Maternal and Child Health Hospital, Jiangxi Branch of National Clinical Research Center for Obstetrics and Gynecology, Nanchang Medical College, Nanchang, China
2. Department of Histology and Embryology, School of Basic Medicine, Nanchang University, Nanchang, China
3. The Second Clinical Medical College of Nanchang University, the Second Affiliated Hospital of Nanchang University, Nanchang, China
4. Department of Pathology, Jiangxi Maternal and Child Health Hospital, Jiangxi Branch of National Clinical Research Center for Obstetrics and Gynecology, Nanchang Medical College, Nanchang, China
5. Center for Reproductive Medicine, Department of Gynecology and Obstetrics, Tangdu Hospital, Air Force Medical University, Xi’an, China
6. Center for Reproductive Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China