1. Research Team for Promoting Independence and Mental Health Tokyo Metropolitan Institute of Gerontology and Geriatrics Tokyo Japan
2. Department of Frailty Research, Center for Gerontology and Social Science Research Institute, National Center for Geriatrics and Gerontology Aichi Japan
3. Division of Preventive Dentistry, Department of Oral Health Science Hokkaido University Sapporo Japan
4. Integrated Research Initiative for Living Well with Dementia Tokyo Metropolitan Institute of Gerontology and Geriatrics Tokyo Japan