1. University of California San Francisco
2. Cleveland Clinic Cleveland Ohio
3. University of Kansas Medical Center Kansas City
4. Mayo Clinic Jacksonville Florida
5. Columbia University New York New York
6. McMaster University Hamilton Ontario Canada
7. Northwestern University Chicago Illinois
8. Emory University Atlanta Georgia
9. Springfield Illinois
10. National Institute of Arthritis and Musculoskeletal and Skin Diseases NIH Bethesda Maryland
11. Children’s Mercy Hospital Kansas City Missouri
12. University of Pennsylvania Philadelphia
13. Johns Hopkins University Baltimore Maryland
14. Massachusetts General Hospital Boston
15. Children’s National Hospital Washington DC
16. Boston Children’s Hospital Boston Massachusetts
17. Chicago Illinois
18. Saint Luke’s Health System Kansas City Missouri
19. Vanderbilt University Nashville Tennessee
20. SSM Health‐St. Mary’s Hospital St Louis Missouri
21. University of Utah Salt Lake City
22. State University of New York at Buffalo
23. University of South Florida Tampa
24. American College of Rheumatology Atlanta Georgia
25. University of Kansas Medical Center, Kansas City, and McMaster University, Hamilton Ontario Canada