1. Department of Radiology, Research Institute of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea.
2. Department of Radiology, Research Institute of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
3. Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
4. Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea.
5. Department of Radiology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea.
6. Department of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea.
7. Department of Radiology, Ajou University Hospital, Ajou University School of Medicine, Suwon, Korea.
8. Department of Radiology, Catholic Kwangdong University International St. Mary’s Hospital, Catholic Kwandong University, Incheon, Korea.