1 Division of Gastroenterology and Hepatology, Department of Medical Sciences, University of Turin, Turin, Italy.
2 Metabolic Liver Disease Research Program, I. Department of Medicine, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany.
3 University Medical Center, Institute of Translational Immunology and Research Center for Immunotherapy, Johannes Gutenberg-University, Mainz, Germany.
4 Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.
5 Department of Internal Medicine II, Saarland University Medical Center, Homburg, Germany.