1. Department of Internal Medicine I Hospital of the Goethe University Frankfurt Germany
2. Department of Internal Medicine I University Hospital Bonn Bonn Germany
3. Hepatic Hemodynamic Lab Medical University Vienna Vienna Austria
4. Division of Gastroenterology & Hepatology Department of Internal Medicine III Medical University of Vienna Vienna Austria
5. Institute of Pharmacology and Toxicology, University Hospital University of Bonn Bonn Germany
6. Division of Gastroenterology and Hepatology Department of Internal Medicine Mayo Clinic Rochester MN USA
7. Division of Gastroenterology and Hepatology Città della Salute e della Scienza Hospital Turin Italy
8. Department of Medicine II, Gastroenterology, Hepatology, Endocrinology, and Infectious Diseases, Faculty of Medicine, Medical Center ‐ University of Freiburg Freiburg Germany
9. European Foundation for the Study of Chronic Liver Failure Barcelona Spain