1 Division of Rheumatology, Department of Medicine, University of California San Francisco, San Francisco, 94143 CA, USA.
2 Centre for Epidemiology Versus Arthritis, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.
3 National Institute of Health Research Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK.
4 Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Paris France.
5 Rheumatology Department, Pitié-Salpêtrière hospital, AP-HP, Paris, France.
6 Epidemiology Unit, German Rheumatism Research Center (DRFZ Berlin), Berlin, Germany.
7 Instituto de Salud Musculoesquelética, Madrid, Madrid, Spain.
8 Portuguese League Against Rheumatic Diseases (LPCDR), Lisbon, Portugal.
9 EULAR Standing Committee of PARE (People with Arthritis Rheumatism in Europe), Zurich, Switzerland.
10 Healthpartners, St. Paul, MN, USA.
11 Department of Medicine, University of Otago, Dunedin, Otago, New Zealand.
12 Massachusetts General Hospital and Program in Rheumatology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.
13 Crystal Run Health, Middletown, NY, USA.
14 Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada.
15 Canadian Arthritis Patient Alliance, Toronto, ON, Canada.
16 Division of Rheumatology, University of Washington, Seattle, WA, USA.
17 Division of Rheumatology and Clinical Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
19 University of Queensland Faculty of Medicine, Brisbane, QLD, Australia.
20 Centre for Rheumatology and Department of Neuromuscular Diseases, University College London, London, UK.
21 Department of Rheumatology and Queen Square Centre for Neuromuscular Diseases, University College London Hospitals NHS Foundation Trust, London, UK.
22 Department of Rheumatology, Northwick Park Hospital, London North West University Healthcare NHS trust, London, UK.