1. Department of Rehabilitation Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
2. Department of Rehabilitation Medicine, Konkuk University Medical Center, Seoul, Korea
3. Department of Rehabilitation Medicine, National Cancer Center, Goyang-si, Gyeonggi-do, Korea
4. Department of Physical and Rehabilitation Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea