1. Institute of Cardiovascular Disease, Department of Emergency and Organ Transplantation; University Hospital Policlinico; Bari Italy
2. Department of Medical and Surgical Sciences; University of Foggia; Foggia Italy
3. Institute of Management; Scuola Superiore Sant'Anna; Pisa Italy
4. Centro Cardiologico Monzino; IRCCS; Milan Italy
5. C.M.O., Torre Annunziata; Naples Italy
6. SDN, IRCCS; Naples Italy
7. Center for Heart and Vascular Medicine; Loyola University of Chicago; Chicago Illinois
8. Center for Heart and Vascular Medicine; Edward Hines Jr. VA Hospital; Hines Illinois
9. Department of Cardiovascular Sciences and Community Health; University of Milan; Milan Italy
10. Department of Cardiology; Parma University Hospital; Parma Italy