1. Department of Obstetrics and Gynecology, Korea University Medicine, Korea University, Seoul, Korea.
2. Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea.
3. Department of Obstetrics and Gynecology, Iwate Medical University School of Medicine, Iwate, Japan.
4. Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China.
5. Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea.
6. Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan.
7. Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada.
8. Cancer Healthcare Research Branch, Center for Uterine Cancer, and Center for Clinical Trials, National Cancer Center, Goyang, Korea.
9. Department of Obstetrics and Gynecology, Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, Korea.
10. Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata, Japan.
11. Department of Obstetrics and Gynecology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
12. Department of Obstetrics and Gynecology, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand.
13. Obstetrics and Gynecology Section, MedPark Hospital, Bangkok, Thailand.
14. Department of Obstetrics and Gynecology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan.