1. Gastroenterology and Endoscopy Unit, IRCCS Policlinico San Donato, 20097 San Donato Milanese, Italy
2. Immunology and Functional Genomics Unit, Centro Cardiologico Monzino, IRCCS, 20138 Milan, Italy
3. Department of Medicine, University of Verona, 37129 Verona, Italy
4. Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
5. Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy
6. Department of Health Sciences, University of Milan, 20122 Milan, Italy
7. Gastroenterology and Liver Unit, ASST Santi Paolo e Carlo, 20142 Milan, Italy