1. Department of Rehabilitation Medicine I, School of Medicine, Fujita Health University, Toyoake, Japan
2. Department of Rehabilitation Medicine, National Center for Geriatrics and Gerontology, Obu, Japan
3. Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Obu, Japan
4. Kinjo University, Hakusan, Japan