1 Centre for Genetics and Genomics Versus Arthritis, Centre for Musculoskeletal Research, The University of Manchester, Manchester, UK.
2 National Institute of Health Research Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK.
3 Epidemiology Unit, German Rheumatism Research Center (DRFZ Berlin), Berlin, Germany.
4 Centre for Epidemiology Versus Arthritis, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.
5 Instituto de Salud Musculoesquelética, Madrid, Spain.
6 European Alliance of Associations for Rheumatology (EULAR), Kilchberg, Switzerland.
7 Sorbonne Université, INSERM, Institut Pierre Louis d'Epidemiologie et de Sante Publique, Paris, France.
9 Portuguese League Against Rheumatic Diseases (LPCDR), Lisbon, Portugal.
10 European Alliance of Associations for Rheumatology (EULAR) Standing Committee of People with Arthritis/Rheumatism in Europe (PARE), Kilchberg, Switzerland.
11 Centre for Rheumatology & Department of Neuromuscular Diseases, University College London, London, UK p.machado@ucl.ac.uk.
12 National Institute for Health Research (NIHR) University College London Hospitals Biomedical Research Centre, University College London Hospitals NHS Foundation Trust, London, UK.
13 Department of Rheumatology, Northwick Park Hospital, London North West University Healthcare NHS Trust, London, UK.