1. Department of Rheumatology, University Clinical Center Ljubljana, Ljubljana, Slovenia
2. The Zabludowicz Center for Autoimmune Diseases and Department of Medicine B, Sheba Medical Center, Tel-Aviv Israel
3. Faculty of Agricultural, The Hebrew University of Jerusalem, Jerusalem, Israel
4. Division of Rheumatology, Department of Internal Medicine-University of Milan, Italy
5. Department of Autoimmune Diseases, Hospital Clínic, Barcelona, Catalonia, Spain
6. Medical Clinic , Institute of Transfusion Medicine, University Hospital, Johann Wolfgang Goethe-University, Frankfurt, Germany
7. Bezhanijska Kosa University Medical Center, Beograd, Serbia
8. The Zabludowicz Center for Autoimmune Diseases and Department of Medicine B, Sheba Medical Center, Tel-Aviv Israel, Incumbent of the Laura Schwarz-Kip Chair for Research of Autoimmune Diseases, Tel-Aviv University, Tel-Aviv, Israel,