1. Department of Dentistry, Hamamatsu City Rehabilitation Hospital, Shizuoka, Japan
2. Department of Neurology, Gifu University Graduate School of Medicine, Gifu, Japan
3. Department of Rehabilitation Medicine, Hamamatsu City Rehabilitation Hospital, Shizuoka, Japan
4. Department of Rehabilitation Medicine, Seirei Awaji Hospital, Hyogo, Japan
5. Department of Rehabilitation, Hamamatsu City Rehabilitation Hospital, Shizuoka, Japan
6. Department of Nutrition, Hamamatsu City Rehabilitation Hospital, Shizuoka, Japan
7. Department of Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan