1. Department of Orthopaedic Surgery, MS Jaegeon Hospital, Daegu, Republic of Korea
2. Department of Orthopaedic Surgery, Mirae Hospital, Busan, Republic of Korea
3. Department of Orthopaedic Surgery, Ilsan Paik Hospital, Inje University School of Medicine, Goyang, Republic of Korea
4. Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea