1. Center for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan
2. Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Japan
3. Meikai University School of Dentistry, Japan
4. Fukuoka Dental College Graduate School of Dental Science, Japan
5. Health Sciences University of Hokkaido School of Dentistry, Japan
6. Tohoku University Graduate School of Dentistry, Japan
7. Tokyo Medical and Dental University Graduate School of Medical and Dental Sciences, Japan
8. Showa University School of Dentistry, Japan
9. Tokushima University Graduate School of Biomedical Sciences, Japan
10. Tokyo Dental College, Japan
11. Kanagawa Dental University Graduate School, Japan
12. Ministry of Health, Labour, and Welfare, Chugoku-Shikoku Regional Bureau of Health and Welfare, Japan
13. Hiroshima University Graduate School of Biomedical and Health Sciences, Japan
14. Kagoshima University Graduate School of Medical and Dental Sciences, Japan
15. Nagasaki University Graduate School of Biomedical Sciences, Japan
16. Kyushu Dental University, Japan
17. Iwate Medical University School of Dentistry, Japan
18. Kyushu University Faculty of Dental Science, Japan
19. Osaka University Graduate School of Dentistry, Japan
20. Nihon University School of Dentistry, Japan