1. Department of Rehabilitation Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
2. Traffic Rehabilitation Research Institute, National Traffic Rehabilitation Hospital, Yangpyeong-gun, Gyeonggi-do, Republic of Korea
3. Program in Occupational Therapy, WA University School of Medicine, St. Louis, MO, USA
4. Rehabilitation Medical Research Center, Incheon Hospital, Korea Workers’ Compensation and Welfare Service, Incheon, Republic of Korea