1. Department of Internal Medicine I University of Bonn BonnGermany
2. Heart Center University of Bonn BonnGermany
3. Department of Visceral Surgery University of Bonn BonnGermany
4. Department of Radiology University of Bonn Bonn Germany
5. European Foundation for the Study of Chronic Liver Failure Barcelona Spain
6. Translational Hepatology, Department of Internal Medicine 1 University of Frankfurt Frankfurt Germany