1. Baylor University Medical Center, Dallas, Texas
2. Alliance Statistics and Data Center, Mayo Clinic, Rochester, Minnesota
3. Northwestern University, Feinberg School of Medicine, Chicago, Illinois
4. Indiana University School of Medicine, Indianapolis
5. Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates
6. Boone Hospital Center, Columbia, Missouri
7. Franciscan St. Francis Health, Indianapolis, Indiana
8. MD Anderson Cancer Center, Houston, Texas
9. Vanderbilt University School of Medicine, Nashville, Tennessee
10. University of Chicago, Chicago, Illinois
11. Washington University, St Louis, Missouri
12. Cleveland Clinic–Weston, Weston, Florida
13. The Oregon Clinic, Oregon Health & Science University, Portland
14. Lankenau Hospital, Wynnewood, Pennsylvania
15. Ochsner Clinic, New Orleans, Louisiana
16. Lahey Clinic, Burlington, Massachusetts
17. University of Rochester, Rochester, New York
18. Stanford University, Palo Alto, California
19. Mayo Clinic