1. Department of Orthopedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.
2. Department of Orthopedic Surgery, Seoul National University College of Medicine, Seoul, Korea.
3. Department of Orthopaedic Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
4. Department of Health Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Korea.