1. Department of Orthopaedic Surgery, Pusan National University Yangsan Hospital, Yangsan
2. Department of Orthopaedic Surgery, Medical Research Institute, Pusan National University Hospital, Busan
3. Department of Orthopaedic Surgery, Inje University Haeundae Paik Hospital, Busan
4. Department of Orthopaedic Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon
5. Department of Orthopedic Surgery, Armed Forces Capital Hospital, Seongnam
6. Centum Institute for Hand and Microsurgery, West Busan Centum Hospital, Busan, Korea