1. Oxford University, John Radcliffe Hospital, Oxford University Hospitals , Oxford, UK
2. Department of Cellular and Molecular Medicine, University of Bristol , Bristol, UK
3. Consultant Biostatistician, Whately-Smith Ltd , Herts, UK
4. Royal National Hospital for Rheumatic Diseases, Royal United Hospitals , Bath, UK
5. Ruhr-Universität Bochum, and Rheumazentrum Ruhrgebiet , Bochum, Germany
6. Academic Rheumatology Unit, Department of Medicine and Health Sciences “Vincenzo Tiberio”, University of Molise , Campobasso, Italy
7. Rheumatology & ISPA Translational Immunology Division, Faculty of Medicine, Rheumatology Service & the Principality of Asturias Institute for Health Research (ISPA), Universidad de Oviedo , Oviedo, Spain
8. Acción Psoriasis , Barcelona, Spain
9. Rheumatologische Schwerpunktpraxis , Berlin, Germany
10. CREATE Centre, Division of Infection and Immunity, Cardiff University , Cardiff, UK
11. Rheumatology Department of Lucania, San Carlo Hospital , Potenza, Italy
12. Rheumatology Unit, Azienda Ospedaliero Universitaria Pisana , Pisa, Italy
13. Rheumatology Department, Centre Hospitalier du Mans , Le Mans, France
14. Rheumatology Department, INSERM UMRs1097 Autoimmune Arthritis, Aix Marseille University , Marseille, France
15. Rheumatology Department, Aix Marseille University, Arthrites Autoimmunes , Marseille, France
16. Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds , Leeds, UK
17. The Kellgren Centre for Rheumatology, Manchester University NHS Foundation Trust , Manchester, UK
18. Division of Rheumatology, Klinikum Nürnberg, Paracelsus Medical University , Nürnberg, Germany
19. Rheumatology Department, Hospital Universitario 12 Octubre , Madrid, Spain
20. Universidad Complutense de Madrid, Avda de Córdoba sin , Madrid, Spain
21. Rheumatology, Universitiy Hospital Frankfurt, Fraunhofer-Institute for Translational Medicine and Cluster of Excellence Immune-Mediated Diseases CIMD , Frankfurt am Main, Germany
22. Rheumatology Department, Hospital Universitario Salamanca , Salamanca, Spain
23. Academic Unit of Population and Lifespan Sciences, University of Nottingham , Nottingham, UK
24. Rheumatology Department, INIBIC. CHU A Coruña , A Coruña, Spain
25. Arthritis Unit, Rheumatology Department, Hospital Clinic , Barcelona, Spain
26. Rheumatology Center, Toulouse University Hospital, CIC 1436 Inserm, Rheumatology , Tolouse, France
27. Paul Sabatier University, Toulouse III , Toulouse, France
28. Rheumatology Unit, Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome , Rome, Italy
29. Rheumatology, Bradford Teaching Hospitals NHS Foundation Trust , Bradford, UK
30. MVZ für Rheumatologie Dr M. Welcker GmbH , Planegg, Germany
31. Rheumatology Department, Gabriel-Montpied Teaching Hospital of Clermont-Ferrand , Clermont-Ferrand, France
32. Rheumatology Department, Sorbonne Université, INSERM, Institut Pierre Louis d’Epidémiologie et de Santé Publique, Paris, FR. & AP-HP, Pitié-Salpêtrière Hospital , Paris, France
33. Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford , Oxford, UK