1. Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan.
2. Department of Clinical Genomic Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan.
3. Department of Gynecologic Oncology, National Hospital Organization Shikoku Cancer Center, Ehime, Japan.
4. Department of pathology, National Defense Medical College Hospital, Saitama, Japan.
5. Division of Obstetrics and Gynecology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Miyagi, Japan.
6. Division of Integrative Genomics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
7. Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata, Japan.
8. Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
9. Department of Obstetrics and Gynecology, The Jikei University School of Medicine, Tokyo, Japan.
10. Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai, Japan.
11. Department of Obstetrics and Gynecology, Tokai University, Kanagawa, Japan.
12. Department of Obstetrics and Gynecology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
13. Kumamoto University, Kumamoto, Japan.