1. Center for Cardiovascular Innovation; Northwestern University Feinberg School of Medicine; Chicago IL USA
2. Department of Medicine, Massachusetts General Hospital; Harvard Medical School; Boston MA USA
3. Department of Medicine; Stanford University School of Medicine; Stanford CA USA
4. Division of Cardiology, Department of Medicine; Duke University Medical Center; Durham NC USA
5. Division of Cardiology, Department of Medicine; Northwestern University Feinberg School of Medicine; Chicago IL USA
6. ANMCO Research Center; Florence Italy
7. Department of Cardiology; University of Brescia; Brescia Italy
8. The Cardiovascular Center; Tufts Medical Center; Boston MA USA
9. Division of Cardiology; Emory University School of Medicine; Atlanta GA USA
10. Attikon University Hospital; Athens Greece