1. Cardiology Department; Papa Giovanni XXIII Hospital; Bergamo Italy
2. Cardiovascular Department; University of Trieste; Italy
3. Division of Cardiology; Duke University Medical Center; Durham NC USA
4. Villa Bianca Hospital; Trento Italy
5. Heart Failure Clinic, Division of Cardiology; San Martino Hospital; Belluno Italy
6. FROM - Clinical Research Foundation; Papa Giovanni XXIII Hospital; Bergamo Italy
7. Cardiovascular Center; University of Trieste; Italy