1. Department of Radiolgoy, InJe University Sanggye Paik Hospital, Seoul 01757, Korea.
2. Department of Radiology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon 35015, Korea.
3. Department of Radiology, Gachon University Gil Hospital, Incheon 21565, Korea.
4. Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, Korea.
5. Department of Radiology, Kyungpook National University Medical Center, Daegu 41944, Korea.
6. Department of Radiology, Kyung Hee University Hospital at Gangdong, Kyung Hee University College of Medicine, Seoul 05278, Korea.
7. Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea.
8. Department of Radiology, Korea University Guro Hospital, Korea University College of Medicine, Seoul 08308, Korea.
9. Division for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul 04554, Korea.
10. Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.