1. Cedars‐Sinai Smidt Heart Institute Los Angeles California USA
2. Weill Cornell Medicine New York New York USA
3. Columbia University New York New York USA
4. Cleveland Clinic Cleveland Ohio USA
5. Houston Methodist Hospital Houston Texas USA
6. Baylor University Medical Center Dallas Texas USA
7. University of Maryland Baltimore Maryland USA
8. Yale University New Haven Connecticut USA
9. Baylor College of Medicine Houston Texas USA
10. Intermountain Healthcare Salt Lake City Utah USA
11. University of California at Los Angeles Los Angeles California USA
12. Stanford University Palo Alto California USA