Mattia Galli1,2, Giuseppe Princi1, Filippo Crea1, Domenico D'Amario1. 1. Department of Cardiovascular and Thoracic Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of the Sacred Heart, Largo Francesco Vito 1, Roma 00168, Italy. 2. Division of Cardiology, University of Florida College of Medicine, Jacksonville, FL, USA.