1. Division of Cardiology, Department of Medicine Karolinska Institutet Stockholm Sweden
2. Vanderbilt Heart and Vascular Institute Vanderbilt University Medical Center Nashville TN USA
3. Cardiothoracovascular Department Azienda Sanitaria Universitaria Giuliano Isontina Trieste Italy
4. Division of Cardiology, Department of Medicine University of North Carolina at Chapel Hill Chapel Hill NC USA
5. Yale School of Medicine Section of Cardiovascular Medicine New Haven CT USA
6. De Gasperis Cardio Center ASST Grande Ospedale Metropolitano Niguarda Milan Italy
7. Division of Cardiovascular Medicine University of Maryland School of Medicine and Baltimore Veterans Administration Medical Center Baltimore MD USA
8. Inova Heart and Vascular Institute Falls Church VA USA
9. Centre for Clinical & Basic Research IRCCS San Raffaele Pisana Rome Italy
10. Division of Cardiology, Department of Medicine University of Colorado School of Medicine Aurora CO USA