1. Department of Rehabilitation, Mikatahara Bethel-home, Shizuoka, Japan
2. Department of Rehabilitation, Seirei Mikatahara General Hospital, Shizuoka, Japan
3. Department of Dentistry, Seirei Mikatahara General Hospital, Shizuoka, Japan
4. Department of Rehabilitation Medicine, Seirei Mikatahara General Hospital, Shizuoka, Japan
5. Department of Dentistry, Hamamatsu City Rehabilitation Hospital, Shizuoka, Japan
6. Department of Rehabilitation Medicine, Hamamatsu City Rehabilitation Hospital, Shizuoka, Japan