1. Department of Orthopaedic Surgery, Bumin Hospital Haeundae, Busan, Republic of Korea
2. Department of Orthopaedic Surgery, Seheung Hospital, Busan, Republic of Korea
3. Department of Orthopaedic Surgery, BioMedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
4. Department of Orthopaedic Surgery, BioMedical Research Institute, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea