1. Cardiovascular Department, Azienda Sanitaria Universitaria Integrata, University of Trieste, Via Pietro Valdoni n. 7, Trieste, Italy
2. Heart Failure Unit, Cardiac Department, Guglielmo da Saliceto Hospital, Piacenza, Italy
3. Biostatistics Unit, Department of Medical Sciences, University of Trieste, Italy
4. Cardiovascular Rehabilitation, Ospedale Riabilitativo di Alta Specializzazione, Motta di Livenza, Italy
5. Division of Cardiology, “Santa Maria degli Angeli” Hospital, Pordenone, ASS5, Italy