1 Department of Biomedical Science, Mercer University School of Medicine, Savannah, GA 31405, USA ; Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China ; Anderson Cancer Institute, Memorial Health Hospital, Savannah, GA 31404, USA.
2 Department of Obstetrics and Gynecology, Mayo Clinic, Mayo Medical School, Rochester, MN 55905, USA.
3 Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China.
4 Department of Obstetrics and Gynecology, Weifang Medical University, Weifang, Shandong 201031, China ; Center for Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261031, China.