1. Division of Cardiology 1; Department of Internal Medicine; Città Della Salute e Della Scienza; Turin Italy
2. Division of Cardiology 2; Department of Internal Medicine; Città della Salute e della Scienza Hospital; Turin Italy
3. Ferrarotto Hospital; University of Catania; Catania Italy
4. Division of Cardiology; Istituto Humanitas; Milan Italy
5. Division of Cardiac Surgery; Città della Salute e della Scienza Hospital; Turin Italy