1. Department of Human Health Sciences; Kyoto University Graduate School of Medicine; Kyoto Japan
2. Department of Clinical Nursing; Shiga University of Medical Science; Shiga Japan
3. Kami-cho Municipal Office, Welfare Section; Hyogo Japan
4. Kami-cho Municipal Office, Health Section; Hyogo Japan
5. National Center for Geriatrics and Gerontology; Aichi Japan