University of Naples Federico II, “Vito Fazzi” Hospital, University of Turin, University of Naples Federico II, University of Milano-Bicocca - Fondazione IRCCS San Gerardo dei Tintori, University of Padua - Department of Medicine, University of Naples Federico II, affiliation not provided to SSRN, University of Turin, affiliation not provided to SSRN, University of Milano-Bicocca, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Naples Federico II, University of Verona, University Hospital of Parma, Università degli Studi di Genova, University of Turin, affiliation not provided to SSRN, University of Florence, affiliation not provided to SSRN, Ospedale Giovanni Paolo II, affiliation not provided to SSRN, affiliation not provided to SSRN, Università Vita-Salute San Raffaele - San Raffaele Hospital, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Naples Federico II - Department of Public Health, University of Turin and University of Naples Federico II