1. Department of Cellular and Molecular Medicine, University of Bristol , Bristol, UK
2. Oxford University Hospital, University of Oxford , Oxford, UK
3. Consultant Biostatistician, Whately-Smith Ltd , Herts, UK
4. Royal National Hospital for Rheumatic Diseases, Royal United Hospitals , Bath, UK
5. Rheumazentrum Ruhrgebiet , Herne, Germany
6. Ruhr-University Bochum , Herne, Germany
7. Academic Rheumatology Unit, Department of Medicine and Health Sciences “Vincenzo Tiberio”, University of Molise , Campobasso, Italy
8. Rheumatology and ISPA Translational Immunology Division, Hospital Universitario Central de Asturias, Oviedo-Asturias , Spain
9. Acción Psoriasis , Barcelona, Spain
10. Rheumatologische Schwerpunktpraxis , Berlin, Germany
11. CREATE Centre, Division of Infection and Immunity, Cardiff University , Cardiff, UK
12. Rheumatology Department of Lucania, San Carlo Hospital of Potenza , Potenza, Italy
13. Rheumatology Unit, Azienda Ospedaliero Universitaria Pisana , Pisa, Italy
14. Rheumatology Department, Centre Hospitalier du Mans , Le Mans, France
15. Rheumatology Department, CHU Marseille , Marseille, France
16. LIRMM, University of Leeds , Leeds, UK
17. Kellgren Centre for Rheumatology, Manchester University NHS Foundation Trust , Manchester, UK
18. Division of Rheumatology, Paracelsus Medical University, Klinikum Nürnberg , Nuremberg, Germany
19. Servicio de Reumatología, Hospital Universitario, 12 de Octubre , Madrid, Spain
20. Universidad Complutense de Madrid , Madrid, Spain
21. Division of Rheumatology, Goethe University , Frankfurt, Frankfurt am Main, Germany
22. Fraunhofer Institute for Translational Medicine and Pharmacology ITMP & Fraunhofer Centre of Excellence Immunemediated Diseaes CIMD , Frankfurt am Main, Germany
23. Rheumatology Department, Hospital Universitario Salamanca , Salamanca, Spain
24. Academic Unit of Population and Lifespan Sciences, University of Nottingham , Nottingham, UK
25. Rheumatology Department, Complexo Hospitalario Universitario A Coruña , Coruña, Spain
26. Arthritis Unit, Rheumatology Department, Hospital Clinic , Barcelona, Spain
27. Rheumatology Centre, Toulouse University Hospital , Toulouse, France
28. Paul Sabatier University, Toulouse III , Toulouse, France
29. Rheumatology Unit, Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome , Rome, Italy
30. Rheumatology, Bradford Teaching Hospitals NHS Foundation Trust , Bradford, UK
31. Rheumatology Department, CHU Clermont-Ferrand , Clermont-Ferrand, France
32. Sorbonne Université, INSERM, Institut Pierre Louis d’Epidémiologie et de Santé Publique , Paris, France
33. Rheumatology Department, AP-HP, Pitié-Salpêtrière Hospital , Paris, France
34. Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford , Oxford, UK