1. Department of Orthopedic Surgery; Yonsei University College of Medicine; Seoul Korea
2. Division of Medical Oncology; Department of Internal Medicine; Yonsei Cancer Center; Yonsei University College of Medicine; Seoul Korea
3. Department of Radiology and Research Institute of Radiological Science; Yonsei University College of Medicine; Seoul Korea
4. Department of Pathology; Yonsei University College of Medicine; Seoul Korea