1. Department of Internal Medicine B, University of Münster, Münster, Germany
2. European Foundation for Study of Chronic Liver Failure, EASL-CLIF-Consortium, Barcelona, Spain
3. Department of Gastroenterology and Hepatology, University of Southern Denmark, Odense, Denmark
4. Digestive Diseases Section, Department of Medicine, Yale University, New Haven, Connecticut, USA
5. Digestive Diseases Section, Department of Medicine, VA-CT Healthcare System, West Haven, Connecticut, USA