1. Department of Rehabilitation Medicine; Hanyang University College of Medicine, Seoul, South Korea
2. Department of Radiology; Sanggye Paik Hospital, Inje University College of Medicine; Seoul, South Korea
3. Department of Rehabilitation Medicine; Gachon University of Medicine and Science, Gil Medical Center; Incheon, South Korea
4. Department and Research Institute of Rehabilitation Medicine; Yonsei University College of Medicine, Seoul; South Korea
5. Department of Physical Medicine & Rehabilitation; Sanggye Paik Hospital, Inje University College of Medicine; Seoul, South Korea