- 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

University of Naples Federico II, University of Naples Federico II, University of Naples Federico II, University of Naples Federico II, University of Naples Federico II, University of Naples Federico II, University of Naples Federico II, University of Naples Federico II, University of Naples Federico II, University of Naples Federico II, University of Naples Federico II and University of Naples Federico II

ASST Rhodense - Gastroenterology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, IRCCS Humanitas Research Teaching Hospital, ASST Fatebenefratelli-Sacco University Hospital, University of Florence - Azienda Ospedaliero Universitaria Careggi, Fondazione IRCCS Casa Sollievo della Sofferenza, Azienda Villa Sofia-Cervello, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Naples Federico II, University of Milano-Bicocca, Universita di Torino, University of Padua - Padua General University Hospital, Regional Hospital San Camillo-Forlanini, Antonio Cardarelli Hospital, San Filippo Neri Hospital, AO Ordine Mauriziano - Gastroenterology Unit, University of Rome Tor Vergata, UOSD Endoscopia Digestiva, Ospedale Alto Vicentino, AULSS 7 Pedemontana, Santorso (VI), University of Milan, Policlinico Campus Bio Medico - Gastroenterology and Endoscopy Unit, University of Brescia, University of Palermo, University of Padua, Azienda Ospedaliera-Universitaria Pisana, Ospedale Maggiore - Pediatric Gastroenterology Unit, Fondazione Poliambulanza, IRCCS Sacro Cuore Don Calabria - Gastroenterology Unit, Ospedale Mons. Dimiccoli - Gastroenterology Unit, University of Pavia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Humanitas University, ASST Fatebenefratelli-Sacco University Hospital, Azienda Ospedaliero-Universitaria Careggi, Fondazione IRCCS Casa Sollievo della Sofferenza, Azienda Villa Sofia-Cervello, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, ASST Rhodense, IRCCS Humanitas Research Teaching Hospital and Gastroenterology Unit, Rho Hospital, Rho (MI), ASST Rhodense