1. Division of Reproductive Biology Research, Department Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
2. Department of Obstetrics and Gynecology, First Hospital of Peking University, Beijing, P.R. China
3. Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Istanbul University Capa School of Medicine, Istanbul, Turkiye
4. Department of Obstetrics and Gynecology, Tohoku University School of Medicine, Sendai, Japan