1. Department of Removable Prosthodontics and Gerodontology, Tokyo Dental College
2. Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology
3. The Tokyo Metropolitan Support Center for Preventative Long-term and Frail Elderly Care, Tokyo Metropolitan Institute of Gerontology
4. Gerodontology, Department of Oral Health Science, Faculty of Dental Medicine, Hokkaido University
5. Research Team for Human Care, Tokyo Metropolitan Institute of Gerontology
6. Faculty of Health Care, Takasaki University of Health and Welfare
7. Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology
8. Department of Social Medicine, Hirosaki University School of Medicine
9. Removable Prosthodontics, Nihon University School of Dentistry at Matsudo
10. Division of Community-Based Comprehensive Dentistry, Department of Special Needs Dentistry, School of Dentistry, Showa University