1. Rheumatology Research Center, Shariati Hospital, Tehran University of Medical Sciences; Tehran Iran
2. Department of Internal Medicine; Alexandria Faculty of Medicine, Alexandria University; Alexandria Egypt
3. Department of Internal Medicine; Mayo Clinic College of Medicine; Jacksonville FL USA
4. Division of Health Sciences Research; Mayo Clinic College of Medicine; Jacksonville FL USA
5. Department of Internal Medicine I; Innsbruck Medical University; Innsbruck Austria
6. Division of Evidence Based Dermatology; Dessau Medical Center; Dessau Germany
7. Departments of Dermatology, Venereology, Allergology and Immunology; Dessau Medical Center; Dessau Germany
8. German Registry of Adamantiades-Behçet's Disease; Dessau Germany
9. Department of Internal Medicine; King Faisal Specialist Hospital and Research Centre, College of Medicine, King Saud University; Riyadh Saudi Arabia
10. Department of Systemic Rheumatic Diseases; State Institute of Rheumatology; Moscow Russia
11. Department of Internal Medicine; Aga Khan University Hospital; Karachi Pakistan
12. Department of Internal Medicine; Division of Rheumatology; Faculty of Medicine Siriraj Hospital, Mahidol University; Bangkok Thailand
13. Department of Dermatology and Venereology; Innsbruck Medical University; Innsbruck Austria
14. Department of Internal Medicine; Hospital São Teotónio; Viseu Portugal
15. Department of Internal Medicine; CHU Ibn Rochd; Casablanca Morocco
16. Department of Internal Medicine; La Rabba Hospital; Tunis Tunisia
17. Department of Dermatology; School of Medicine, Ankara University; Ankara Turkey
18. Department of Internal Medicine; Hospital Geral de Santo António; Porto Portugal
19. Department of Dermatology; Chang Gung Memorial Hospital Kaohsiung, Chang Gung University; Kaohsiung Taiwan
20. Department of Internal Medicine; Hadassah-Hebrew University Medical Centre; Jerusalem Israel
21. Department of Internal Medicine; Coimbra University Hospital; Coimbra Portugal
22. Department of Internal Medicine; Hospital de S. João; Porto Portugal
23. Department of Rheumatology and Immunology; Peking Union Medical College Hospital; Beijing China
24. Department of Medicine II; Fernando da Fonseca Hospital; Lisbon Portugal
25. Kadisia Clinic; Tripoli Libya
26. Rheumatology Unit; Hospital Juan Canalejo; La Coruña Spain
27. Department of Dermatology and Venereology; College of Medicine, Medical City Teaching Hospital, University of Baghdad; Baghdad Iraq
28. Department of Therapeutic Dentistry; Azerbaijan Medical University; Baku Azerbaijan
29. Department of Rheumatology; Medical Center; Athens Greece
30. Department of Internal Medicine; Clinical Immunology and Rheumatology Service; All India Institute of Medical Sciences; New Delhi India
31. Department of Internal Medicine; Jordan Hospital; Amman Jordan
32. Department of Ophthalmology and Visual Sciences; Hokkaido University Graduate School of Medicine; Sapporo Japan
33. Rheumatology Department of Lucania; San Carlo Hospital, Potenza and Madonna delle Grazie Hospital, Matera; Italy
34. Portuguese Institute of Rheumatology; Lisbon Portugal
35. Rheumatology Unit; Hospital Santa Maria Nuova; Reggio Emilia Italy
36. Department of Rheumatology and Metabolic Bone Diseases; Hospital Santa Maria; Lisbon Portugal
37. Rheumatology Research Unit, Institute of Molecular Medicine, Medical Faculty, University of Lisbon; Lisbon Portugal
38. Department of Internal Medicine; Santo António dos Capuchos Hospital; Lisbon Portugal
39. Department of Internal Medicine; Hospital Espírito Santo; Évora Portugal
40. Department of Internal Medicine; Hospital Sousa Martins; Guarda Portugal
41. Internal Medicine Department; Pitie Salpetriere Hospital; Paris France
42. Allergy, Arthritis and Rheumatism Clinic, Gleneagles Medical Centre; Singapore Singapore
43. Rheumatology and Clinical Immunology Department; Peking University First Hospital; Peking China