1. Division of Rheumatology, Department of Medicine, Schroeder Arthritis Institute, Krembil Research Institute, Toronto Western and Mount Sinai Hospitals; Institute of Health Policy, Management and Evaluation University of Toronto Toronto Ontario Canada
2. Division of Rheumatology, Department of Medicine, Schroeder Arthritis Institute, Krembil Research Institute, Toronto Western Hospital University of Toronto Toronto Ontario Canada
3. Division of Rheumatology, Cincinnati Children's Hospital Medical Center University of Cincinnati, Department of Pediatrics;Cincinnati Ohio USA
4. University College London Centre for Rheumatology, Division of Medicine London London UK
5. Division of Rheumatology, Cumming School of Medicine University of Calgary Calgary Alberta Canada
6. Service de rhumatologie Centre National de Reference des Maladies Autoimmunes et Systemique Rares (CRMR RESO), INSERM UMR‐S 1109, Université de Strasbourg Strasbourg France
7. Centre de Recherche du Centre Hospitalier Universitaire de Québec, Faculté de Médecine de l'Université Laval and Centre ARThrite, Quebec City Quebec Canada
8. Rheumatology Unit, Department of Clinical and Experimental Medicine University of Pisa Italy
9. Department of Rheumatology and Clinical immunology, Amsterdam UMC, location VUmc Amsterdam The Netherlands
10. Allegheny Health Network, Lupus Center of Excellence Pittsburgh PA USA
11. Feinstein Institutes for Medical Research, Northwell Health Manhasset NY USA
12. Columbia University Irving Medical Center New York NY USA
13. The University of Alabama at Birmingham School of Medicine, Department of Medicine, Division of Clinical Immunology and Rheumatology Birmingham AL USA
14. Department of Rheumatology Hanyang University Hospital for Rheumatic Diseases and Hanyang University Institute for Rheumatology Research Seoul Republic of Korea
15. Cochin Hospital, Internal Medicine Department, Centre de référence maladies auto‐immunes et systémiques rares d'île de France, Paris, France; Université Paris Descartes‐Sorbonne Paris Cité, Paris, France ; INSERM U 1153, Center for Epidemiology and Statistics Sorbonne Paris Cité (CRESS), Paris France
16. Department of Medicine Medical University of South Carolina Charleston USA
17. Grupo Oroño. Centro Regional de Enfermedades Autoinmunes y Reumáticas (GO‐CREAR), Sanatorio Parque Rosario Argentina
18. Institute of Inflammation and Ageing University of Birmingham Birmingham UK
19. SUNY Downstate Health Sciences University, Department of Medicine Brooklyn NY USA
20. Division of Rheumatology Queen Elizabeth II Health Sciences Center (Nova Scotia Rehabilitation Site) and Dalhousie University Halifax Nova Scotia Canada
21. Copenhagen Lupus and Vasculitis Clinic, Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
22. University of California San Diego School of Medicine La Jolla CA USA
23. Division of Rheumatology and Immunology Medical University of South Carolina Charleston USA
24. Division of Rheumatology, Department of Medicine Queen Elizabeth II Health Sciences Center and Dalhousie University Halifax Nova Scotia Canada
25. Department of Medicine, Division of Rheumatology Emory University School of Medicine
26. Division of Rheumatology, Department of Medicine, Yong Loo Lin School of Medicine National University of Singapore Singapore
27. Faculty of Medicine, Nursing and Health Sciences Monash University Melbourne Australia
28. Christine A. Peschken, Max Rady College of Medicine, Rady Faculty of Health Sciences University of Manitoba
29. Johns Hopkins University School of Medicine, Division of Rheumatology Baltimore MD USA
30. Centre for Rheumatology, Division of Medicine University College London London UK
31. Northwestern University Feinberg School of Medicine Chicago USA
32. Rheumatology Research Group Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK; Sandwell and West Birmingham NHS Trust Birmingham UK
33. Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Department of Immunology and Rheumatology Mexico City Mexico
34. Autoimmune Diseases Research Unit Biocruces Bizkaia Health Research Institute, Hospital Universitario Cruces, UPV/EHU Barakaldo País Vasco Spain
35. Division of Rheumatology, Department of Medicine Mount Sinai Hospital/University Health Network University of Toronto, Toronto, Ontario, Canada; and Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán Mexico City Mexico
36. Division of Rheumatology, Department of Medicine Solna, Karolinska Institute Karolinska University Hospital Stockholm Sweden
37. Division of Rheumatology, Department of Medicine, Toronto Western and Mount Sinai Hospitals; Institute of Health Policy, Management and Evaluation University of Toronto Toronto Ontario Canada
38. Division of Rheumatology, Department of Medicine Toronto Western Mount Hospital; Senior Scientist Schroeder Arthritis Institute, Krembil Research Institute. Toronto Ontario Canada
39. McGill University Faculty of Medicine, Division of Rheumatology Montreal QC Canada
40. Amsterdam University Medical Centres, Duivendrecht Noord‐Holland NL
41. Cedars‐Sinai Medical Center/David Geffen School of Medicine Center at UCLA Los Angeles California USA
42. University Hospital Hairmyres Lanarkshire Scotland UK
43. Manchester University Hospitals NHS Foundation Trust, NIHR Manchester Musculoskeletal Biomedical Research Centre, Manchester Academic Health Science Centre, Manchester, Greater Manchester, UK; Centre for Epidemiology Versus Arthritis, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Manchester UK