1. Department of Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea.
2. Department of Nuclear Medicine, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea.
3. Department of Pathology, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea.