1. Department of Physical Therapy, Takasaki University of Health and Welfare, Takasaki, Japan
2. Department of Physical Therapy, Niigata University of Health and Welfare, Niigata, Japan
3. Department of Rehabilitation, Hanna Sawarabi Ryoikuen, Takasaki, Japan
4. Department of Rehabilitation, Sannocho Hospital, Sanjo, Japan
5. Suzuki Otolaryngology Clinic, Niigata, Japan
6. Department of Rehabilitation, Takeda General Hospital, Aizuwakamatsu, Japan
7. Department of Rehabilitation, Iwamuro Rehabilitation Hospital, Niigata, Japan
8. Department of Rehabilitation, Tsunoda Hospital, Takasaki, Japan
9. Tsutsumi Orthopaedic Clinic, Akita, Japan
10. Happy Heart Niigata Chuo, Niigata, Japan
11. Communityworks Takasaki, Takasaki, Japan