1. Department of Rheumatology, Geffen School of Medicine, University of California, Los Angeles, CA, USA
2. B.Shine Rheumatology Unit, Rambam Medical Health Care Campus, Rappaport Faculty of Medicine, Technion-Israeli Institute of Technology, Haifa, Israel
3. Rappaport Faculty of Medicine, Technion-Institute of Technology, Haifa, Israel
4. Division of Rheumatology, University of Michigan, Ann Arbor, MI, USA