1. The Christ Hospital Cincinnati Ohio USA
2. The Carl and Edyth Lindner Center for Research and Education The Christ Hospital Cincinnati Ohio USA
3. Sulpizio Cardiovascular Center University of California San Diego La Jolla California USA
4. Center for Interventional Vascular Therapy Columbia University Medical Center New York New York USA
5. Minneapolis Heart Institute Minneapolis Minnesota USA
6. Emory Health Care Atlanta Georgia USA
7. Northside Cardiovascular Institute Atlanta Georgia USA
8. University of Washington Medical Center Seattle Washington USA
9. Medical University of South Carolina North Charleston South Carolina USA
10. Stanford University Medical Center Stanford California USA
11. Virginia Heart / Inova Heart and Vascular Institute Falls Church Virginia USA
12. Beth Israel Deaconess Medical Center Boston Massachusetts USA
13. Wake Forest University School of Medicine Winston‐Salem North Carolina USA
14. Massachusetts General Hospital Boston Massachusetts USA