1. Department of Health and Sports Science, Faculty of Health Science and Technology Kawasaki University of Medical Welfare Okayama Japan
2. Graduate School of Human Sciences Osaka University Osaka Japan
3. Osaka Home Healthcare Clinic Osaka Japan
4. Center for Southeast Asian Studies Kyoto University Kyoto Japan
5. Department of Field Medicine Graduate School of Medicine Kyoto University Kyoto Japan
6. Department of Nursing Komazawa Women's University Tokyo Japan
7. Gifu Shotoku Gakuen University Gihu Japan
8. Department of Preventive Dentistry, Faculty of Dental Medicine and Graduate School of Dental Medicine Hokkaido University Sapporo Japan
9. Tokyo Metropolitan Institute for Geriatrics and Gerontology Tokyo Japan
10. Division of Community Oral Health Development Kyushu Dental University Fukuoka Japan