1. Department of Rheumatology, Aarhus University Hospital , Aarhus, Denmark
2. Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds , Leeds, UK
3. NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust , Leeds, UK
4. Department of Clinical Medicine, Aarhus University , Aarhus, Denmark
5. Reference center for Osteoporosis, Rheumatology & Dermatology , Cali, Colombia
6. Department of Rheumatology, University Hospital Basel , Basel, Switzerland
7. Rheumatology Department, St Maartenskliniek , Nijmegen, Netherlands
8. Rheumatology and Clinical Immunology, Cairo University , Cairo, Egypt
9. Department of Medicine, The Regional Hospital in Horsens , Horsens, Denmark
10. Department of Rheumatology, Dudley Group NHS FT , Dudley, UK
11. Department of Rheumatology, St. James’s Hospital , Dublin, Ireland
12. Department of Rheumatology, ‘Grigore T. Popa’ University of Medicine and Pharmacy , Iasi, Romania
13. Department of Rheumatology, Southend University Hospital , Southend, UK
14. Division of Rheumatology, Fondazione IRCCS Policlinico San Matteo , Pavia, Italy
15. Department of Internal Medicine and Therapeutics, Università di Pavia , Pavia, Italy
16. Division of Rheumatology, Mayo Clinic College of Medicine and Science , Rochester, USA
17. Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh , Pittsburgh, PA, USA
18. Rheumatology Unit, Massachusetts General Hospital , Boston, USA
19. Rheumatology Department-Scarborough Health Network and Kensington Eye Institute, University of Toronto—Center for Prognosis Studies in Rheumatic Diseases, Toronto Western Hospital , Toronto, Canada
20. Faculty Therapy, Pirogov National Russian Research Medical University , Moscow, Russian Federation
21. Department of Medicine, University of Otago Wellington , Wellington, New Zealand
22. Department of Medicine, Universidad Francisco Marroquín , Guatemala City, Guatemala
23. Department of Orthopedics, Rheumatology and Traumatology-School of Medical Science, University of Campinas , Campinas, Brazil
24. Rheumatology Section, Department of Medicine, University of Chile’s Clinical Hospital , Santiago, Chile
25. Universidad Nacional de Asunción, Hospital de Clinicas , Asunción, Paraguay
26. Medical School, UWA, Perth Australia, Rheumatology Department, Fiona Stanley Hospital , Perth, Australia
27. Department of Allergy and Rheumatology, Nippon Medical School , Tokyo, Japan
28. Department of Rheumatology, Royal Wolverhampton Hospital NHS Trust , Wolverhampton, UK
29. Department of Rheumatology, City Hospital, Sandwell and West Birmingham Hospitals NHS Trust , Birmingham, UK
30. Division of Musculoskeletal and Dermatological Sciences, Centre for Musculoskeletal Research, School of Biological Sciences, The University of Manchester , Manchester, UK
31. Rheumatology, Fauji Foundation Hospital Rawalpindi , Rawalpindi, Pakistan
32. Rheumatology, Mediclinic Parkview Hospital, Dubai Health Authority , Dubai, United Arab Emirates
33. Faculty of Medicine and Pharmacy, Department of Rheumatology, Ibn Zohr University , Agadir, Morocco
34. Rheumatology, Saint-Joseph University , Beirut, Lebanon
35. Rheumatology Unit, Department of Medicine, University of Baghdad , Bagdhad, Iraq
36. Rheumatology Unit, Internal Medicine Department, Obafemi Awolowo University Teaching Hospitals Complex , Ile-Ife, Nigeria
37. German Centrum for Immune Therapy, Friedrich-Alexander-University Erlangen Nürnberg (FAU) and Universitätsklinikum Erlangen , Erlangen, Germany
38. Centre for Epidemiology, Norwich Medical School, University of East Anglia , Norwich, UK
39. Department of Rheumatology, Norfolk and Norwich University Hospital , Norwich, UK
40. Department of Rheumatology, Hospital Nacional Guillermo Almenara Irigoyen , Lima, Peru
41. Universidad Científica del Sur , Lima, Perú
42. Department of General Medicine/Rheumatology, Pontifical Catholic University of Campinas , Campinas, Brazil
43. Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen , Groningen, the Netherlands
44. School of Medicine, University of Staffordshire , Stafford, UK
45. Rheumatology, Medical University of Graz , Graz, Austria
46. Rheumatology, Hospital of Bruneck (SABES-ASAA) , Bruneck, Italy