1. Rheumatology Unit, Department of Biotechnological and Applied Clinical Sciences University of L'Aquila L'Aquila Italy
2. Department of Medical Sciences Surgery and Neurosciences, Research Center of Systemic Autoinflammatory Diseases and Behçet's Disease Clinic, University of Siena Siena Italy
3. Azienda Ospedaliero‐Universitaria Senese [European Reference Network (ERN) for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA) Center] Siena Italy
4. Rheumatology Division, Faculdade de Medicina, Hospital das Clínicas, Universidade de São Paulo São Paulo Brazil
5. Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe‐J) Policlinic Hospital University of Bari Bari Italy
6. Rheumatology Unit, Department of Medicine, College of Medicine King Saud University Riyadh Saudi Arabia
7. College of Medicine Research Center, College of Medicine, King Saud University Riyadh Saudi Arabia
8. Department of Precision Medicine University of Campania “Luigi Vanvitelli” Naples Italy
9. Joint Academic Rheumatology Program, Medical School National and Kapodistrian University of Athens Athens Greece
10. Clinical and Research Section of Rheumatology and Clinical Immunology Fondazione Policlinico Campus Bio‐Medico, Via Álvaro del Portillo 200 Rome Italy
11. Rheumatology, Immunology and Clinical Medicine Unit, Department of Medicine University of Rome “Campus Biomedico” School of Medicine Rome Italy
12. Division of Immunology, Transplants and Infectious Diseases Università Vita‐Salute San Raffaele Milan Italy
13. Unit of Immunology, Rheumatology, Allergy and Rare Diseases IRCCS Ospedale San Raffaele Milan Italy
14. Department of Internal Medicine, Division of Rheumatology Gazi University Hospital Ankara Turkey
15. Department of Immunology and Rheumatology Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City Mexico
16. Department of Ophthalmology Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán Mexico City Mexico
17. Internal Medicine Department, Rheumatology and Clinical Immunology Unit, Faculty of Medicine Cairo University Egypt
18. Faculty of Medicine Newgiza University (NGU) Egypt
19. Department of Internal Medicine, Division of Rheumatology Marmara University, Faculty of Medicine Istanbul Turkey
20. Department of Pediatrics, Attikon General Hospital National and Kapodistrian University of Athens Greece
21. Rheumatology Unit, Department of Medicine University of Padua Padua Italy
22. Rheumatology Unit, Department of Medical Sciences, Azienda Ospedaliero‐Universitaria S. Anna‐Ferrara University of Ferrara Ferrara Italy
23. Department of Pediatrics, Pediatric Rheumatology Center, Giovanni XXIII Pediatric Hospital University of Bari Bari Italy
24. University Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE) “G.D'Alessandro” University of Palermo Palermo Italy
25. Department of Internal Medicine and Therapeutics University of Pavia Italy
26. Division of Rheumatology Fondazione IRCCS Policlinico San Matteo Pavia Italy
27. Department of Rheumatology Medical University of Lodz, Zeromskiego 113, Lodz Poland
28. Pediatric and Neonatology Unit, Department of Maternal Infantile and Urological Sciences Sapienza University of Rome Latina Italy
29. Department of Experimental and Clinical Medicine University of Florence Florence Italy
30. Centre for Inflammatory Diseases, Department of Medicine, Monash Medical Centre Monash University Clayton VIC Australia
31. Rheumatology Unit, Department of Medicine and Surgery University of Perugia Perugia Italy
32. Department of Autoimmune Diseases, Institut d'Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Hospital Clínic of Barcelona [European Reference Network (ERN) for Rare Immunodeficiency, Autoinflammatory and Autoimmune Diseases (RITA) Center] University of Barcelona Barcelona Spain
33. Pediatric Nephrology and Rheumatology Unit, Azienda Ospedaliera Universitaria (AOU), “G. Martino” Messina Italy
34. Department of Woman, Child and of General and Specialized Surgery University of Campania “Luigi Vanvitelli” Naples Italy
35. UOSD Reumatologia, ARNAS Garibaldi Catania Italy
36. NEUROFARBA Department, Rheumatology Unit, MeyerChildren's Hospital IRCCS University of Florence Florence Italy
37. Rheumatology Unit, Department of Medicine University and Azienda Ospedaliera Universitaria Integrata of Verona Italy
38. Department of Internal Medicine, Pneumonology, Allergology and Clinical Immunology, Central Clinical Hospital of the Ministry of National Defense Military Institute of Medicine, National Research Institute Warsaw Poland
39. Department of Rheumatology, Faculty of Medicine Ankara City Hospital Ankara Yıldırım Beyazıt University Ankara Turkey
40. Department of Life, Health & Environmental Sciences and Internal Medicine and Nephrology Unit, Department of Medicine University of L'Aquila and ASL Avezzano‐Sulmona‐L'Aquila, San Salvatore Hospital L'Aquila Italy
41. Department of Translational Medical Sciences, Section of Clinical Immunology University of Naples Federico II Naples Italy
42. Rheumatology Unit, Department of Medicine, Central Hospital of Bolzano Bolzano Italy
43. Rheumatology and Immunology Unit, Internal Medicine Department Mansoura University Mansoura Egypt
44. Department of Internal Medicine, Faculty of Medicine Horus University New Damietta Egypt
45. Department of Clinical Sciences and Community Health, Research Center for Adult and Pediatric Rheumatic Diseases University of Milan Milan Italy
46. Academic Rheumatology Centre, Ospedale Mauriziano ‐ Dipartimento Scienze Cliniche e Biologiche Università degli Studi di Torino Turin Italy
47. UOC di Reumatologia Azienda Ospedaliera San Camillo Forlanini Roma Italy
48. Department of Biomedical and Clinical Sciences Luigi Sacco, Luigi Sacco Hospital University of Milan Milan Italy
49. Pediatric Unit, Fatebenefratelli Hospital Milan Italy
50. Joint Academic Rheumatology Program, First Department of Propaedeutic and Internal Medicine National and Kapodistrian University of Athens Athens Greece
51. Division of Rheumatology, Department of Internal Medicine, School of Medicine Manisa Celal Bayar University Manisa Turkey
52. Rheumatology Unit, Department of Clinical Medicine and Surgery University of Naples Federico II Naples Italy
53. Rheumatic and Systemic Autoimmune Diseases Unit, Department of Interdisciplinary Medicine (DIM) University of Bari Medical School Italy
54. Rheumatology Unit, Department of Clinical and Experimental Medicine University of Messina Italy
55. Rheumatology Section, Department of Health Promotion Mother and Child Care, Internal Medicine and Medical Specialties, University Hospital P. Giaccone, University of Palermo Palermo Italy