1. University of Oxford, Peter Medawar Building for Pathogen Research , Oxford , United Kingdom
2. University Hospitals Leuven-KU Leuven, Department of Gastroenterology and Hepatology , Leuven , Belgium
3. University of Oxford, Translational Gastroenterology Unit, Nuffield Department of Medicine , Oxford , United Kingdom
4. Warwick Medical School- University of Warwick, Division of Biomedical Sciences , Coventry , United Kingdom
5. University of Pennsylvania-Perelman School of Medicine, Division of Gastroenterology, Department of Medicine , Philadelphia , United States
6. Icahn School of Medicine at Mount Sinai, The Henry D. Janowitz Division of Gastroenterology , New York , United States