1. Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea.
2. Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea.
3. Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Republic of Korea.
4. Department of Radiology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
5. Department of Radiology, Seoul National University Bundang Hospital, Seoul, Republic of Korea.
6. Department of Radiology, Ajou University Medical Center, Suwon, Republic of Korea.
7. Department of Radiology and Center for Imaging Science, Samsung Medical Center, Seoul, Republic of Korea.
8. Department of Radiology, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Republic of Korea.
9. Department of Radiology, Medical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Republic of Korea.
10. Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
11. Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
12. Medical Research Collaborating Center, Seoul National University Hospital, Seoul, Republic of Korea.
13. Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Republic of Korea.