1. Rheumatology Department Saint‐Joseph University Beirut Lebanon
2. Rheumatology Department Hotel‐Dieu de France Hospital Beirut Lebanon
3. Rheumatology Department Holy Spirit University Kaslik Lebanon
4. Rheumatology Department Notre‐Dame des Secours University Lebanon
5. Radiology Department Hotel‐Dieu de France Beirut Lebanon
6. Lebanese University Hospital Beirut Lebanon
7. Rizk University Medical Center Beirut Lebanon
8. Levant Hospital Sin‐el‐Fil Lebanon
9. Monla Hospital Tripoli Lebanon
10. Geitawi Hospital Beirut Lebanon
11. Al Zahra University Hospital Beirut Lebanon
12. American University of Beirut Medical Center Beirut Lebanon
13. Blood Transfusion Center Hotel‐Dieu de France Beirut Lebanon
14. Medical University Hannover Germany
15. Rheumazentrum Ruhrgebiet Herne Germany
16. Ruhr‐Universität Bochum Bochum Germany