1. Department of Orthopaedic Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Republic of Korea
2. Department of Orthopaedic Surgery, Busan Micro Hospital, Busan, Republic of Korea
3. Department of Orthopaedic Surgery, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
4. Department of Orthopedic Surgery, SNU Seoul Hospital, Seoul, Republic of Korea
5. Department of Orthopaedic Surgery, Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea