1. Human Care Research Team Tokyo Metropolitan Institute of Gerontology Tokyo Japan
2. Research Department Institute for Health Economics and Policy Tokyo Japan
3. Department of Psychiatry Tokyo Metropolitan Geriatric Hospital Tokyo Japan
4. Dementia Support Center Tokyo Metropolitan Geriatric Hospital Tokyo Japan
5. Research Team for Promoting Independence of the Elderly Tokyo Metropolitan Institute of Gerontology Tokyo Japan
6. Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology Tokyo Japan