1. Department of Pathology Kurume University School of Medicine Fukuoka Japan
2. Department of Obstetrics and Gynecology Kurume University Fukuoka Japan
3. Department of Pathology Okayama University Hospital Kitaku Okayama Japan
4. Department of Diagnostic Pathology Kumamoto University Hospital Kumamoto Japan
5. Department of Diagnostic Pathology Iizuka Hospital Fukuoka Japan
6. Department of Obstetrics and Gynecology Kagoshima University Kagoshima Japan
7. Faculty of Life Science Kumamoto University Kumamoto Japan
8. Department of Obstetrics and Gynecology Tokai University Isehara Kanagawa Japan
9. Department of Obstetrics and Gynecology Fukuoka University Fukuoka Japan
10. Department of Obstetrics and Gynecology Kumamoto University Kumamoto Japan