1. Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Southern California, Los Angeles, CA, USA
2. Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, USA
3. Department of Obstetrics and Gynecology, Tottori University, Tottori, Japan
4. Current affiliation: Department of Obstetrics and Gynecology, Tohoku University, Miyagi, Japan
5. Department of Gynecology, Saitama Cancer Center, Saitama, Japan
6. Department of Obstetrics and Gynecology, University of Tsukuba Faculty of Medicine, Tsukuba, Japan
7. Department of Obstetrics and Gynecology, Faculty of Life Sciences Kumamoto University, Kumamoto, Japan
8. Department of Gynecology, Niigata Cancer Center Hospital, Niigata, Japan
9. Current affiliation: Department of Obstetrics and Gynecology, Niigata Minami Hospital, Niigata, Japan
10. Department of Obstetrics and Gynecology, The Jikei University Kashiwa Hospital, Kashiwa, Japan
11. Current affiliation: Department of Gynecology, Chiba Tokushukai Hospital, Funabashi, Japan
12. Department of Obstetrics and Gynecology, Kyoto University, Kyoto, Japan
13. Current affiliation: Department of Obstetrics and Gynecology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
14. Department of Obstetrics and Gynecology, Tokai University, Kanagawa, Japan
15. Department of Obstetrics and Gynecology, Iwate Medical University, Iwate, Japan