1. King Faisal Specialist Hospital & Research Centre; Jeddah Saudi Arabia
2. Department of Medicine; King Saud University; Riyadh Saudi Arabia
3. Department of Medicine; Jordan University of Science and Technology; Irbid Jordan
4. Kuwait University; Kuwait
5. Al Biraa Arthritis Clinic; Dubai UAE
6. Life Wilgeheuwel Hospital; Roodepoort South Africa
7. Department of Rheumatology; Farhat Hached Hospital; Sousse Tunisia
8. Hamad Medical Corporation; Doha Qatar
9. Faculty of Medicine; Cairo University and Cairo University Hospitals; Cairo Egypt
10. Cairo University; Dokki Giza Egypt
11. Department of Rheumatology; Tunis-Manar University; Mongi Slim Hospital; Tunis Tunisia
12. Rheumatology Department; Faculté de Médecine; Maherzi-Alger Bab El Oued Hospital; Algiers Algeria
13. Department of Internal Medicine; Division of Rheumatology; American University of Beirut-Medical Center; Beirut Lebanon
14. University Medical Center-Rizk Hospital; Beirut Lebanon
15. Riyadh Military Hospital; Riyadh Saudi Arabia
16. Rheumatology B Department; Paris-Descartes University; APHP; Cochin Hospital; Paris France