1. School of Industrial and Management Engineering, Korea University, Seoul, Republic of Korea
2. Department of Physical Medicine and Rehabilitation, Korea University College of Medicine, Seoul, Republic of Korea
3. Department of Rehabilitation Medicine, Regional Rheumatoid and Degenerative Arthritis Center, Jeju National University Hospital, Jeju National University College of Medicine, Jeju, Republic of Korea
4. Department of Rehabilitation Medicine, Seoul National University Boramae Medical Center, Seoul, Republic of Korea
5. Department of Rehabilitation Medicine, Seoul National University Bundang Hospital, Seoul National University, College of Medicine, Seongnam-si, Gyeonggi-do, Republic of Korea