Affiliation: | 1. Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA;2. University of California, San Francisco, Liver Center, University of California, San Francisco, San Francisco, California, USA Department of Pathology, University of California, San Francisco, San Francisco, California, USA;3. University of California, San Francisco, Liver Center, University of California, San Francisco, San Francisco, California, USA Department of Medicine, Division of Gastroenterology, University of California, San Francisco, San Francisco, California, USA;4. Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA |