1. Department of Rehabilitation Medicine, Konkuk University School of Medicine and Konkuk University Medical Center, Seoul, Korea
2. Department of Rehabilitation Medicine, Gyeongin Rehabilitation Center Hospital, Incheon, Korea
3. Center for Neuroscience Research, Institute of Biomedical Science & Technology, Konkuk University, Seoul, Korea
4. Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea