1. Cardiovascular Division, Brigham and Women's Hospital Harvard Medical School Boston MA USA
2. Kaiser Permanente San Francisco Medical Center San Francisco CA USA
3. University of Utah Medical Center Salt Lake City UT USA
4. British Heart Foundation Cardiovascular Research Centre University of Glasgow Glasgow UK
5. Universidad Nacional de Córdoba Córdoba Argentina
6. Erasmus Medical Center, Department of Cardiology Rotterdam The Netherlands
7. Saint Luke's Mid America Heart Institute University of Missouri‐Kansas City Kansas City MO USA
8. National Heart Centre Singapore and Duke‐National University of Singapore Singapore Singapore
9. Department of Cardiology Copenhagen University Hospital‐Rigshospitalet Copenhagen Denmark
10. Duke University Medical Center Durham NC USA
11. Minneapolis VA Center for Care Delivery and Outcomes Research University of Minnesota Minneapolis MN USA