1. University of Texas Southwestern Medical Center Dallas TX
2. Duke University Medical Center and Duke Clinical Research Institute Durham NC
3. Université de Montréal Montreal QC Canada
4. University of Kansas Medical Center Kansas City KS
5. University of Michigan Ann Arbor MI
6. Essentia Health Heart and Vascular Center Duluth MN
7. Ochsner Health New Orleans LA
8. Medical College of Wisconsin Milwaukee WI
9. Vanderbilt University Medical Center Nashville TN
10. University of Florida Gainesville FL
11. University of Pittsburg Medical Center Pittsburgh PA
12. University of Chicago Medicine Chicago IL
13. Northwestern University Feinberg School of Medicine Chicago IL
14. Stanford University School of Medicine Stanford CA