1 Department of Medical Sciences, School of Medicine, Pharmacy and Prevention, University of Ferrara Via L. Ariosto 35, 44121 Ferrara, Italy. Electronic address: roberto.manfredini@unife.it.
2 'Cava de' Tirreni and Amalfi Coast', Division of Cardiology, Heart Department, University Hospital, Salerno, Italy. Electronic address: ebossone@hotmail.com.