1. Weill Cornell MedicineHospital for Special Surgery New York New York
2. University of Texas Southwestern Medical Center Dallas
3. Oklahoma Medical Research Foundation Oklahoma City
4. University of California San Diego
5. Duke University Medical Center Durham North Carolina
6. University of Michigan School of Medicine Ann Arbor
7. McMaster University Hamilton Ontario Canada
8. University of Utah Salt Lake City
9. New York University School of Medicine New York New York
10. John Hopkins Medicine Baltimore Maryland
11. Shelby Township Michigan
12. Baylor Research Institute Dallas Texas
13. Stanford Medicine Stanford California
14. University of Toronto Toronto Ontario Canada
15. Drexel University College of Medicine Philadelphia Pennsylvania
16. Georgetown University Medical Center Washington DC
17. Brigham and Women’s Hospital Boston Massachusetts
18. McGill University Health Center Montreal Quebec Canada
19. University of Mississippi Jackson
20. University of California San Francisco
21. University of Iowa Iowa City
22. American College of Rheumatology Atlanta Georgia
23. ECRI Institute Plymouth Meeting Pennsylvania
24. University of Pittsburgh Pittsburgh Pennsylvania