Institution: | (1) Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, South Korea;(2) Department of Orthopaedic Surgery, Kyungpook National University College of Medicine, Daegu, South Korea;(3) Department of Orthopaedic Surgery, Korea University College of Medicine, Seoul, South Korea;(4) Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam, 463-707, South Korea |