1. Department of Radiology, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea.
2. Department of Pathology, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea.
3. Department of Radiology, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea.
4. Colorectal Cancer Centre, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea.