1. Department of Cardiology; Second University of Naples; Monaldi Hospital; “dei Colli - Monaldi” Hospitals; Naples Italy
2. Division of Pneumology; Federico II University; Monaldi Hospital; “dei Colli - Monaldi” Hospitals; Naples Italy
3. Cardiology, “Villa dei Fiori” Clinic; Naples Italy
4. Global Marketing US Cardio - Esaote Ultrasound Technology; Florence Italy
5. Department of Cardiovascular Medicine; Piedmont Heart Institute; Atlanta Georgia
6. Department of Cardiology and Cardiac Surgery; “San Giovanni di Dio e Ruggi d'Aragona” University Hospital; Salern Italy