1. Department of Medicine ‘B’, Sheba Medical Center, Tel-Hashomer, Israel
2. The Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel
3. Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
4. Epidemiology and Database Research, Maccabi Healthcare Services, Tel Aviv, Israel
5. Division of Rheumatology, Department of Medicine and Dentistry, University of Alberta, Edmonton, Canada
6. Department of Medicine and Immunology, University of Maastricht, Maastricht, The Netherlands