- Department of Clinical Medicine and Surgery, University of Naples Federico II, University of Leeds - Leeds Institute of Medical Research at St. James’s, University of Naples Federico II, University of Padua - Division of Gastroenterology, University of Western Ontario, University of Western Ontario, Università Vita-Salute San Raffaele - Department of Gastroenterology and Endoscopy, Humanitas University and University of Padua - Division of Gastroenterology