1 Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University, 5 #50, Ilwon-dong, Gangnam-gu, 135-710 Seoul, Republic of Korea.
2 Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University, 5 #50, Ilwon-dong, Gangnam-gu, 135-710 Seoul, Republic of Korea. Electronic address: [email protected].