1 Department of Internal Medicine I, University of Bonn, Bonn, Germany; European Foundation for the Study of Chronic Liver Failure, Barcelona, Spain; Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark; Institute for Bioengineering of Catalonia, Barcelona, Spain. Electronic address: jonel.trebicka@ukbonn.de.
2 Department of Gastroenterology, Hvidovre Hospital, Copenhagen University, Hvidovre, Denmark.