1. Department of Orthopaedic Surgery, Ajou University School of Medicine, Suwon, Korea
2. Department of Orthopaedic Surgery, Ajou University School of Medicine, Suwon, Korea,
3. Department of Thoracic and Cardiovascular Surgery, Ajou University School of Medicine, Suwon, Korea
4. Department of Diagnostic Radiology, Ajou University School of Medicine, Suwon, Korea