1 Institute of Cardiology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, S.Orsola University Hospital, Bologna, Italy.
2 Cardiology Division, Department of Biomedical, Metabolic and Neural Sciences, University of Modena & Reggio Emilia, Modena University Hospital, Modena, Italy.
3 Cardiology Division, Department of Biomedical, Metabolic and Neural Sciences, University of Modena & Reggio Emilia, Modena University Hospital, Modena, Italy. Electronic address: [email protected].