1. Department of Radiology and the Research Institute of Radiology; Seoul Korea
2. Division of Liver Transplantation and Hepatobiliary Surgery; Departments of Surgery; University of Ulsan College of Medicine; Asan Medical Center; Seoul Korea
3. Department of Radiology; Kangbuk Samsung Hospital; Sungkyunkwan University School of Medicine; Seoul Korea
4. School of Computer Science and Engineering; Soongsil University; Seoul Korea