1 Section of Hepatology, Virginia Commonwealth University, Richmond, Virginia, USA.
2 Division of Gastroenterology and Hepatology, University Health Network, University of Toronto, Toronto, Ontario, Canada.
3 Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
4 Baylor University Medical Center, Dallas, Texas, USA.
5 Mayo Clinic Evidence-based Practice Center, Mayo Clinic, Rochester, Minnesota, USA.
6 Section of Digestive Diseases, Yale School of Medicine, New Haven, Connecticut, USA, and VA Connecticut Healthcare System, West Haven, Connecticut, USA.
7 Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
8 Department of Pediatrics, Baylor College of Medicine and Division of Gastroenterology, Hepatology and Nutrition, Texas Children's Hospital, Houston, Texas, USA.
9 Department of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.
10 Section of Digestive Diseases, Yale School of Medicine, New Haven, Connecticut, USA and VA Connecticut Healthcare System, West Haven, Connecticut, USA.
11 Department of Diagnostic, Molecular and Interventional Radiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
12 Digestive Disease Research Center, Medical University of South Carolina, Charleston, South Carolina, USA.