1. Department of Obstetrics and Gynecology, Tokai University School of Medicine, Kanagawa, Japan.
2. Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Southern California, Los Angeles, CA, USA.
3. Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, USA.
4. Department of Obstetrics and Gynecology, Kyorin University, Tokyo, Japan.
5. Division of Medical Engineering, Department of Information Science, Iwate Medical University, Morioka, Japan.
6. Department of Obstetrics and Gynecology, Tokyo Women’s Medical University, Tokyo, Japan.
7. Department of Obstetrics and Gynecology, Mie University, Mie, Japan.
8. Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan.
9. Faculty of Health Sciences, Hokkaido University, Sapporo, Japan.
10. Department of Obstetrics and Gynecology, Otaru General Hospital, Hokkaido, Japan.
11. Department of Obstetrics and Gynecology, Yamagata University, Yamagata, Japan.