Affiliation: | 1.Centre for Prognosis Studies in the Rheumatic Diseases Toronto Western Hospital, University of Toronto Lupus Clinic, University Health Network, 399 Bathurst St. 1E-410B, Toronto, ON, M5T 2S8, Canada ;2.Department of Rheumatology, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel ; |