1. University of Auckland, Auckland, New Zealand, and Adelaide Medical School, University of Adelaide; South Australia Australia
2. University of Otago, Wellington, and Hutt Valley District Health Board; Lower Hutt New Zealand
3. Veterans Affairs Medical Center and University of California; San Diego
4. Toranomon Hospital, Tokyo, Japan, and University of Colorado Denver; Aurora
5. University of Otago; Dunedin New Zealand
6. Instituto Nacional Rehabilitación Luis Guillermo Ibarra Ibarra; Mexico City Mexico
7. Chiang Mai University; Chiang Mai Thailand
8. University of Florida College of Medicine; Gainesville
9. Hospital Universitario de Alicante and Universidad Miguel Hernández; Alicante Spain
10. State University of Rio de Janeiro; Rio de Janeiro Brazil
11. Keele University; Keele UK
12. Lille Catholic University and Saint-Philibert Hospital; Lomme France
13. Taichung Veterans General Hospital; Taichung Taiwan
14. University of the Basque Country, Biscay, and Cruces University Hospital and Biocruces Health Research Institute; Baracaldo Spain
15. Harvard Medical School, and Brigham and Women's Hospital; Boston Massachusetts
16. Corrona, LLC, Waltham, and University of Massachusetts Medical School; Worcester
17. Mater Misericordiae University Hospital and University College; Dublin Ireland
18. Henry Ford Hospital; Detroit Michigan
19. Christchurch Hospital; Christchurch New Zealand
20. University Hospital Carl Gustav Carus; Technical University Dresden; Dresden Germany
21. Hospital General de México and Universidad Nacional Autónoma de México; Mexico City Mexico
22. Instituto Nacional Rehabilitación; Mexico City Mexico
23. Hôpital Lariboisière, Assistance Publique-Hopitaux de Paris, and INSERM UMR-1132 and Université Paris Diderot; Paris France
24. Harvard Medical School and Massachusetts General Hospital Boston
25. University of Queensland School of Medicine and Royal Brisbane and Women's Hospital; Herston Queensland Australia
26. Veterans Affairs Medical Center, Birmingham, and University of Alabama at Birmingham
27. Viecuri Medical Centre; Venlo The Netherlands
28. University of Alabama at Birmingham
29. Rigshospitalet Glostrup; Glostrup Denmark
30. Diakonhjemmet Hospital; Oslo Norway
31. Duke University School of Medicine; Durham North Carolina
32. University of Ferrara, Ferrara, and Italian Society for Rheumatology; Milan Italy
33. ORLIK; Warsaw Poland
34. Sahlgrenska Academy, University of Gothenburg; Gothenburg Sweden
35. University of Edinburgh; Edinburgh UK
36. Rutgers-Robert Wood Johnson Medical School; Piscataway New Jersey
37. University of Otago; Christchurch New Zealand
38. Hospital General Universitario de Elda; Alicante Spain
39. Warren Alpert School of Medicine at Brown University; Providence Rhode Island
40. Medical College of Wisconsin and the Clement J. Zablocki Veterans Affairs Medical Center; Milwaukee
41. Duke University Medical Center; Durham North Carolina
42. Friedrich-Alexander University Erlangen-Nuremberg; Erlangen Germany
43. University of California, San Diego, and Korea University Ansan Hospital; Ansan South Korea
44. University of Auckland; Auckland New Zealand