1. Yokohama Aobanosato Geriatric Health Services Facility, Yokohama, Japan
2. Division of Social Pharmacy, Department of Healthcare and Regulatory Sciences, School of Pharmacy, Showa University, Tokyo, Japan
3. Research Department, Institute for Health Economics and Policy, Association for Health Economics Research and Social Insurance and Welfare, Tokyo, Japan
4. Department of Home Care Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
5. Department of Health Services Research, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
6. Department of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
7. Ooarai Geriatric Health Services Facility, Ibaraki, Japan
8. Nursing Plaza Kouhoku Geriatric Health Services Facility, Yokohama, Japan
9. Baptist Geriatric Health Services Facility, Kyoto, Japan
10. Onahama Tokiwaen Geriatric Health Services Facility, Fukushima, Japan
11. Rehabilitation Port Yokohama Geriatric Health Services Facility, Yokohama, Japan.