Scientific Consultant Scientific Institute for Research, Hospitalization and Healthcare, Negrar, Verona, Italy; Senior Scholar, University of Padova, Padova, Italy. Electronic address: annarosa.floreani@unipd.it. Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy. Department of Infectious and Tropical Diseases, La Sapienza University of Rome, Rome, Italy.