1. Section of Cardiovascular Diagnosis & Endoluminal Interventions, Rovigo General Hospital, viale Tre Martiri, Rovigo 45100, Italy
2. Faculty of Medicine, University of Ferrara, via Savonarola 9, Ferrara 44121, Italy
3. California Northstate University, College of Medicine, 9700 W Taron Dr, Elk Grove, CA 95757, USA