1. Department of Radiology, Kyungpook National University Medical Center, Daegu, Korea.
2. Department of Radiology, Chonnam National University Hwasun Hospital, Hwasun, Korea.
3. Department of Nuclear Medicine, Kyungpook National University Medical Center, Daegu, Korea.
4. Department of Radiology, Kyungpook National University Hospital, Daegu, Korea.
5. Department of Surgery, Kyungpook National University Medical Center, Daegu, Korea.
6. Department of Pathology, Kyungpook National University Medical Center, Daegu, Korea.