1. Heart Failure Unit, Cardiology, G da Saliceto Hospital, Piacenza
2. Cardiopulmonary Unit, San Paolo Hospital, University of Milan
3. Cardiology, Azienda Ospedaliera S. Orsola-Malpighi, University of Bologna
4. Division of Cardiology, Department of Biomedical and Surgical Sciences, University of Verona
5. Veruno Medical Centre, S. Maugeri Foundation, Veruno
6. CNR, Institute of Neurosciences, Padova, Italy
7. Fondazione G. Monasterio CNR-Regione Toscana
8. Cardiology, Azienda Ospedaliera S. Anna, University of Ferrara
9. Scuola Superiore Sant'Anna, Pisa
10. Internal Medicine, San Bortolo Hospital, Vicenza
11. Cardiac Rehabilitation, Federico II School of Medicine, University of Naples
12. Dipartimento di Scienze Cardiovascolari, Centro Cardiologico Monzino, IRCCS