1 Liver Unit Queen Elizabeth Hospital Birmingham United Kingdom 2 Department of General and Visceral Surgery Frankfurt University Hospital and Clinics Germany 3 Department of Nephrology and Renal Transplantation University Hospitals Leuven Campus Gasthuisberg Belgium 4 Department of Surgery Oncology and Gastroenterology Padova University Hospital Padova Italy 5 Renal Transplantation Unit Department of Surgical Science Università Cattolica Sacro Cuore Rome Italy 6 Department of Public Health Faculty of Medicine Institute of Nursing Science University of Basel Switzerland 7 Department of Public Health Faculty of Medicine Centre for Health Services and Nursing Research KU Leuven Belgium 8 Department of Hepatology and Liver Transplant Unit Henri Mondor Hospital Prague Czech Republic 20 Department of Experimental Medicine and Surgery University of Rome Tor Vergata Italy 21 Department of Hospital Pharmacy and Internal Medicine Erasmus MC the Netherlands