1. Medical University Graz; Department of Rheumatology; Graz Austria, and Southend University Hospital, Department of Rheumatology, Essex, UK
2. Southend University Hospital; Department of Rheumatology; Essex UK
3. London School of Hygiene and Tropical Medicine, Epidemiology and Population Health Faculty; London UK
4. London School of Hygiene and Tropical Medicine; Department of Health Services Research and Policy; London UK
5. University of Genoa; Department of Internal Medicine, Research Laboratory and Academic Division of Clinical Rheumatology; Genoa Italy
6. University of Leeds, NIHR Leeds Musculoskeletal Biomedical Research Unit, and Leeds Institute of Rheumatic and Musculoskeletal Medicine; Leeds UK
7. Mayo Clinic; Department of Rheumatology; Jacksonville Florida
8. Military Institute of Medicine; Department of Internal Medicine and Rheumatology; Warsaw Poland
9. National Institute of Rheumatology and Physiotherapy; 3rd Rheumatology Department; Budapest Hungary
10. Hoyland House; Painswick UK
11. Bibbiano; Italy
12. Charité University Medicine; Department of Rheumatology; Berlin Germany
13. Stony Brook University School of Medicine, Division of Rheumatology, Allergy and Immunology, Winthrop-University Hospital Campus; Mineola New York
14. Timaru Hospital; Department of Rheumatology; Timaru New Zealand
15. University of Barcelona Hospital Clinic; Department of Systemic Autoimmune Diseases; Barcelona Spain
16. Hospital of Southern Norway Trust; Department of Rheumatology; Kristiansand Norway
17. Brigham and Women's Hospital; Division of Rheumatology; Boston Massachusetts
18. Medical University of Innsbruck; Department of Internal Medicine-Clinic VI; Innsbruck Austria
19. patient representatives from Polymyalgia Rheumatica and Giant Cell Arteritis UK; London UK
20. University of Cambridge; Department of Medicine; Cambridge UK
21. Hospital Universitário Pedro Ernesto; Department of Rheumatology; Rio de Janeiro Brazil
22. University of Kwa Zulu Natal, Prince Mshiyeni Memorial Hospital, Nelson R. Mandela School of Medicine; Department of Internal Medicine; Durban South Africa
23. Keele University; Arthritis Research UK Primary Care Centre; Keele UK
24. Universidad de Cantabria, Hospital Universitario Marqués de Valdecilla; Facultad de Medicina, Servicio de Reumatología; Santander Spain
25. University of Kansas Medical Center; Department of Medicine, Division of Allergy, Clinical Immunology, and Rheumatology; Kansas City
26. Mayo Clinic; Department of Family Medicine; Rochester Minnesota
27. NHO Kumamoto Saishunsou National Hospital; Department of Rheumatology, Clinical Research Center for Rheumatic Diseases; Kohshi Kumamoto Japan
28. Sahlgren University Hospital; Department of Rheumatology; Göteborg Sweden
29. Azienda Ospedaliera-IRCCS di Reggio Emilia; Department of Internal Medicine, Division of Rheumatology; Reggio Emilia Italy
30. Immanuel Krankenhaus Berlin and Medical Center for Rheumatology Berlin-Buch; Berlin Germany
31. Hospital for Special Surgery; Department of Medicine; New York New York
32. patient representative from the Mayo Clinic; Rochester Minnesota
33. Universidade Federal de São Paulo; Department of Internal Medicine; São Paulo Brazil
34. Mayo Clinic College of Medicine; Department of Health Sciences Research, Division of Rheumatology; Rochester Minnesota