1. Graduate School of Health Science, Kio University, Koryo, Japan
2. Home-Visit Nursing Station, Kikuchi Medical Association, Kikuchi, Japan
3. Musashigaoka Clinical Research Center, Medical Corporation Tanakakai, Musashigaoka Hospital, Kumamoto, Japan
4. Department of Rehabilitation, Medical Corporation Tanakakai, Musashigaoka Hospital, Kumamoto, Japan