1. Department of Experimental and Clinical Medicine, University of Florence , Florence 50134 , Italy
2. Department of Medicine, University of Perugia School of Medicine , Perugia 06126, Italy
3. Center for Clinical and Translational Research—CERICLET, University of Perugia School of Medicine , Perugia 06126, Italy
4. Department of Cardiology, IRCCS MultiMedica , Milan 20138, Italy
5. Division of Cardiology, University of Perugia School of Medicine , Perugia 06126, Italy
6. Baim Institute for Clinical Research, Harvard Medical School , Boston , MA 02215, USA