1. Division of Cardiology Baystate Medical Center Springfield Massachusetts USA
2. Division of Cardiology University of California San Francisco California USA
3. Division of Cardiology University of Washington Seattle Washington USA
4. Santa Rosa Memorial Hospital St. Joseph Cardiology Medical Group Santa Rosa California USA
5. Zena and Michael A. Wiener Cardiovascular Institute Mount Sinai School of Medicine New York New York USA
6. Division of Cardiology University of Colorado School of Medicine Aurora Colorado USA
7. Division of Cardiology Beth Israel Deaconess Medical Center Boston Massachusetts USA
8. Minneapolis Heart Institute Minneapolis Heart Institute Foundation Minneapolis Minnesota USA
9. Division of Cardiology Emory University Atlanta Georgia USA
10. Division of Cardiology University of Minnesota Minneapolis Minnesota USA
11. Department of Critical Care Medicine and Division of Cardiology University of Alberta Edmonton Canada