Mariangela Peruzzi1, Giacomo Frati2, Giuseppe Biondi-Zoccai3. 1. Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy. 2. Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy ; Department of AngioCardioNeurology, IRCCS NeuroMed, Pozzilli, Italy. 3. Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy ; Eleonora Lorillard Spencer Cenci Foundation, Rome, Italy.