1. Department of Diabetes, Metabolism and Endocrinology; Tokyo Metropolitan Geriatric Hospital; Tokyo Japan
2. Training Department of Administrative Dietitians, Faculty of Human Life Science; Shikoku University; Tokushima Japan
3. Center for Comprehensive Care and Research on Demented Disorders; National Center for Geriatrics and Gerontology; Obu Aichi Japan
4. Department of Community Healthcare and Geriatric Medicine; University of Nagoya; Nagoya Japan
5. Department of Biostatistics, School of Public Health, Graduate School of Medicine; University of Tokyo; Tokyo Japan