1. Department of Obstetrics and Gynecology Keio University School of Medicine Tokyo Japan
2. Department of Obstetrics and Gynecology International Catholic Hospital Tokyo Japan
3. Department of Obstetrics and Gynecology Uwajima City Hospital Uwajima Ehime Japan
4. Perinatal Center for Maternity and Neonate Yokohama City University Medical Center Yokohama Kanagawa Japan
5. Department of Obstetrics and Gynecology Tohoku University Hospital Sendai Miyagi Japan
6. Department of Endocrinology, Diabetes and Metabolism Kitasato University School of Medicine Sagamihara Kanagawa Japan
7. Department of Diabetology and Endocrinology Japanese Asahikawa Red Cross Hospital Asahikawa Hokkaido Japan
8. Department of Internal Medicine Kyoto Goshominami Harashima Clinic Kyoto Japan
9. Department of Obstetrics and Gynecology Ehime University Graduate School of Medicine Toon Ehime Japan