1. Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
2. Department of Orthopaedic Surgery, Yongin Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
3. Department of Orthopaedic Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea