1. Department of Cardiology, Istituto Auxologico Italiano, IRCCS , Piazzale Brescia 20, 20149 Milan , Italy
2. Department of Medicine and Surgery, University of Milano Bicocca , Piazzale Brescia 20, 20149 Milan , Italy
3. Department of Cardiology, Clinical Emergency County Hospital of Craiova , Craiova , Romania
4. Catholic University of the Sacred Heart—Fondazione Policlinico Universitario A. Gemelli, IRCCS , Rome , Italy