1 Musculoskeletal Research Unit, NIHR Wellcome Trust Clinical Research Facility, University Hospital Southampton NHS Foundation Trust, Southampton, UK.
2 Pierre et Marie Curie University Paris 6, Sorbonne Universités, Pierre Louis Institute of Epidemiology and Public Health, Paris, GRC-08 (EEMOIS).
3 APHP, Rheumatology Department, Pitié Salpêtrière Hospital, Paris, F-75013, France.
4 Division of Rheumatology and Clinical Immunology, Department of Medicine IV, Ludwig-Maximilians- Universität, Munich, Germany.
5 Department of Rheumatology, Leiden University Medical Center, Leiden, C1-41, The Netherlands.