[1] McGill Univ Hlth Ctr, Ctr Outcomes Res & Evaluat CORE, Res Inst, Montreal, PQ, Canada
[2] Dalhousie Univ, Rheumatol, Halifax, NS, Canada
[3] Univ Toronto, Toronto Western Hosp, Schroeder Arthrit Inst, Krembil Res Inst, Toronto, ON, Canada
[4] Univ Calgary, Cumming Sch Med, Div Rheumatol, Calgary, AB, Canada
[5] Biocruces Bizkaia Hlth Res Inst, Autoimmune Dis Res Unit, Baracaldo, Spain
[6] Univ Birmingham, Rheumatol Res Grp, Birmingham, England
[7] Northwestern Univ, Med Rheumatol, Evanston, IL USA
[8] Johns Hopkins Univ, Div Rheumatol, Sch Med, Baltimore, MD USA
[9] SUNY Downstate Med Ctr, Med Rheumatol, New York, NY USA
[10] Univ Calif Los Angeles, Cedars Sinai Med Ctr, Cedars Sinai David Geffen Sch Med, Los Angeles, CA USA
[11] Hanyang Univ, Hanyang Univ Hosp Rheumat Dis, Inst Rheumatol, Rheumatol,Inst Biosci & Biotechnol, Seoul, South Korea
[12] Inst Nacl Ciencias Med & Nutr Salvador Zubiran, Immunol & Rheumatol, Mexico City, Mexico
[13] Univ North Carolina Chapel Hill, Med, Chapel Hill, NC USA
[14] Univ Manitoba, Rheumatol, Winnipeg, MB, Canada
[15] UCL, Med Rheumatol, London, England
[16] Allegheny Hlth Network, Allegheny Singer Res Inst, Pittsburgh, PA USA
[17] Copenhagen Univ Hosp, Copenhagen Lupus & Vasculitis Clin, Ctr Rheumatol & Spine Dis, Copenhagen, Denmark
[18] Emory Univ, Sch Med, Atlanta, GA USA
[19] Amsterdam Rheumatol & Immunol Ctr, Dept Rheumatol, Amsterdam, Netherlands
[20] Lund Univ, Dept Clin Sci, Rheumatol, Fac Med, Lund, Sweden
[21] Med Univ South Carolina, Med, Charleston, SC USA
[22] Feinstein Inst Med Res Fertil Res Lab, Autoimmune & Musculoskeletal Dis, Manhasset, NY USA
[23] Toronto Western Hosp, Ctr Prognosis Studies Rheumat Dis, Toronto, ON, Canada
[24] Univ Laval, Med Rheumatol, Quebec City, PQ, Canada
[25] Univ Alabama Birmingham, Div Clin Immunol & Rheumatol, Med, Birmingham, AL USA
[26] Oklahoma Med Res Fdn, Arthrit & Clin Immunol Program, Oklahoma City, OK USA
[27] Univ Calif San Diego, Div Rheumatol Allergy & Immunol, La Jolla, CA USA
[28] Univ Barcelona, Hosp Clin, Dept Autoimmune Dis, Barcelona, Spain
[29] Landspitali Univ Hosp, Dept Obstet & Gynecol, Rheumatol, Reyjavik, Iceland
[30] Hairmyres Hosp, Lanarkshire Ctr Rheumatol, East Kilbride, Scotland
[31] Columbia Univ, Rheumatol, Med Ctr, New York, NY USA
[32] St Thomas Hosp, Rayne Inst, London, England
[33] Univ Manchester, Arc Epidemiol Unit, Manchester, England
[34] Istanbul Univ, Internal Med Rheumatol, Istanbul, Turkey
[35] McGill Univ Hlth Ctr, Div Rheumatol, Montreal, PQ, Canada