1. Smidt Heart Institute Cedars‐Sinai Medical Center Los Angeles California USA
2. New York University Langone Health New York New York USA
3. The University of Chicago Chicago Illinois USA
4. Massachusetts General Hospital Boston Massachusetts USA
5. Cleveland Clinic Heart Vascular and Thoracic Institute Weston Florida USA
6. Medstar Washington Hospital Center Washington District of Columbia USA
7. Oregon Health and Science University Portland Oregon USA
8. Integris Baptist Medical Center Oklahoma City Oklahoma USA
9. Memorial Regional Hospital Hollywood Florida USA
10. Baylor University Medical Center Dallas Texas USA
11. University of Washington Seattle Washington USA
12. Stanford University Stanford California USA