1. University College London United Kingdom
2. University of Arizona College of Medicine Phoenix
3. Medical College of Wisconsin Milwaukee
4. University of Pittsburgh Pittsburgh PA
5. St James's Hospital Dublin Ireland
6. Emerson Hospital Concord Massachusetts
7. The George Washington University Washington DC
8. Johns Hopkins University Baltimore Maryland
9. Brigham and Women's Hospital Boston Massachusetts
10. Universidad Cientifica del Sur Lima Peru
11. Georgetown University Washington DC
12. Hopital Saint‐Antoine Paris France
13. Crystal Run Health Middletown New York
14. Irish Children's Arthritis Network Tipperary Ireland
15. Boston Children's Hospital Massachusetts
16. University of Queensland Brisbane Queensland Australia
17. Canadian Arthritis Patient Alliance McMaster University Hamilton Ontario Canada
18. HealthPartners St. Paul Minnesota
19. University of California in San Francisco
20. Boston University Massachusetts
21. University of Otago Wellington New Zealand
22. Massachusetts General Hospital Boston
23. Temple University Philadelphia Pennsylvania