Affiliation: | 1. Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 82, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, South Korea 2. Department of Orthopaedic Surgery, College of Medicine, Chung-Ang University, 224-1 Heukseok-dong, Dongjak-gu, Seoul, 156-755, South Korea 3. Department of Physical Therapy, Duquesne University, UPMC Center for Sports Medicine, Pittsburgh, PA, USA 4. Department of Orthopedic Surgery, School of Medicine, Chungnam National University, 33 Munhwa-ro, Jung-gu, Taejon, 301-721, South Korea
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