1. Department of Obstetrics and Gynecology, Tokyo Women's Medical University, Tokyo, Japan.
2. Department of Gynecologic Oncology, Saitama Medical University International Medical Center, Tokyo, Japan.
3. Kitasato University School of Pharmacy, Tokyo, Japan.
4. Department of Obstetrics and Gynecology, Tottori University School of Medicine, Yonago, Japan.
5. Global Clinical Research Coordinating Center Division of Clinical Research Kitasato University Hospital, Tokyo, Japan.
6. Department of Clinical Oncology, National Defense Medical College Hospital, Tokorozawa, Japan.
7. Department of Obstetrics and Gynecology, Kurume University School of Medicine, Kurume, Japan.
8. Department of Obstetrics and Gynecology, Jichi Medical University, Tochigi, Japan.
9. Department of Obstetrics and Gynecology, Mie University School of Medicine, Mie, Japan.
10. Department of Obstetrics and Gynecology, St. Mary's Hospital, Kurume, Japan.