Division of Gastroenterology, Hepatology and Nutrition, Vanderbilt University School of Medicine, Nashville, Tennessee. Division of Gastroenterology & Hepatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois. Division of Hepatology, Caen University, Caen, France. Liver Unit, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada. Division of Gastroenterology and Hepatology, Mayo Clinic and Foundation, Rochester, Minnesota, USA.