1. University Medical Center and Faculty of Medicine Carl Gustav CarusTU Dresden Dresden Germany
2. Brigham and Women's Hospital, Harvard Medical School Boston Massachusetts
3. VA Medical Center and University of California San Francisco
4. Heinrich Heine University Dusseldorf Dusseldorf Germany
5. University of Pisa Pisa Italy
6. Northwestern University Feinberg School of Medicine Chicago Illinois
7. Medical University of Vienna Vienna Austria
8. University of California San Francisco
9. National and Kapodestrian University of Athens Medical School and Biomedical Research Foundation of the Academy of Athens, Athens, Greeceand University of Cyprus Medical School Nicosia Cyprus
10. Medical University of South Carolina Charleston
11. University of Cambridge Cambridge UK
12. Hospital Clínic University of Barcelona Barcelona Spain
13. Cochin HospitalCenter de référence maladies auto‐immunes et systémiques rares d'île de France Paris France
14. The Feinstein Institute for Medical Research Manhasset New York
15. Toronto Western HospitalUniversity of Toronto Toronto Ontario Canada
16. University of California Los Angeles
17. Charité–Universitätsmedizin BerlinFreie Universität BerlinHumboldt‐Universität zu BerlinBerlin Institute of Health Berlin Germany
18. Copenhagen Lupus and Vasculitis Clinic, RigshospitaletCopenhagen University Hospital Copenhagen Denmark
19. University of Michigan Ann Arbor
20. Lupus Europe Essex UK
21. Hospital Universitario CrucesUPV/EHU Barakaldo Spain
22. Mount Sinai Hospital/University Health NetworkUniversity of Toronto, Toronto, Ontario, Canadaand Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán Mexico City Mexico
23. Heinrich‐Heine‐University Duesseldorf Germany
24. Toronto Western HospitalUniversity of TorontoLupus Clinic Toronto Ontario Canada
25. University of Crete Medical School Heraklion Crete Greece
26. Charité – Universitätsmedizin BerlinFreie Universität BerlinHumboldt‐Universität zu BerlinBerlin Institute of Health, Berlin, Germanyand University of Schleswig‐Holstein at Kiel Kiel Germany
27. Azienda Ospedaliero Universitaria PisanaUniversity of Pisa Pisa Italy
28. University of Zagreb School of Medicine and University Hospital Center Zagreb Zagreb Croatia
29. Université Paris SudHôpitaux Universitaires Paris‐Sud, AP‐HP, INSERM 1184 Le Kremlin‐Bicêtre France
30. University of Hong Kong Hong Kong China
31. Cumming School of MedicineUniversity of Calgary Calgary Alberta Canada
32. Hospital for Special Surgery New York New York
33. University of Pécs Pécs Hungary
34. University of Padova Padova Italy
35. Medical University of Graz Graz Austria
36. National Institute of Arthritis and Musculoskeletal and Skin DiseasesNIH Bethesda Maryland
37. New York University School of Medicine New York New York
38. AP‐HP, Hôpitaux universitaires Paris‐Sud – Hôpital Bicêtreand Université Paris‐SudINSERM UMR 1184Université Paris‐Saclay Le Kremlin Bicêtre France
39. University Hospital of VigoIRIDIS GroupInstituto de Investigación Sanitaria Galicia Sur (IISGS) Vigo Spain
40. Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán Mexico City Mexico
41. Doctor Negrín University HospitalLas Palmas de Gran Canaria Las Palmas Spain
42. University of Occupational and Environmental Health, Japan Kitakyushu Japan
43. National and Kapodistrian University of Athens Medical School Athens Greece
44. Centro Hospitalar do PortoUniversity of Porto Porto Portugal
45. University of LeedsNIHR Leeds Biomedical Research CenterLeeds Teaching Hospitals NHS Trust Leeds UK
46. Cedars‐Sinai Medical Center Los Angeles California
47. Istanbul Bilim University Istanbul Turkey
48. IRCCS Istituto Auxologico Italiano Milan Italy
49. McMaster University Hamilton Ontario Canada
50. Toronto Western HospitalUniversity Health NetworkMount Sinai HospitalUniversity of Toronto Toronto Ontario Canada