1. Deaprement of Rehabilitation Medicine, Gil Hospital, Gachon University of Medicine and Science, Incheon, Korea.
2. Department of Health & Fitness Management, Namseoul University, Cheonan, Korea.
3. Department of Rehabilitation Medicine, Roihospital, Seoul, Korea.
4. Department of Rehabilitation Medicine, SRC Hospital, Gwangju, Korea.
5. Department of Rehabilitation Medicine, National Health Insurance Corporation Ilsan Hospital, Goyang, Korea.
6. Department of Rehabilitation Medicine, Inje University Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea.