[1] Univ Toronto, Mt Sinai Hosp, Div Rheumatol, Vasculitis Clin, Toronto, ON, Canada
[2] Dalhousie Univ, Queen Elizabeth II Hlth Sci Ctr, Div Rheumatol, Halifax, NS, Canada
[3] Univ British Columbia, Div Rheumatol, Vancouver, BC, Canada
[4] Univ British Columbia, BC Childrens Hosp, Div Pediat Rheumatol, Vancouver, BC, Canada
[5] Queens Univ, Div Rheumatol, Kingston, ON, Canada
[6] Univ Alberta, Div Rheumatol, Edmonton, AB, Canada
[7] McMaster Univ, Div Rheumatol, Hamilton, ON, Canada
[8] Univ Calgary, Div Rheumatol, Calgary, AB, Canada
[9] Univ Calgary, Div Nephrol, Calgary, AB, Canada
[10] Univ Montreal, Ctr Hosp Univ Montreal, Div Rheumatol, Montreal, PQ, Canada
[11] Univ Sherbrooke, Ctr Hosp Univ Sherbrooke, Div Rheumatol, Sherbrooke, PQ, Canada
[12] Univ Montreal, Hop Sacre Coeur Montreal, Div Internal Med, Montreal, PQ, Canada
[13] Univ Ottawa, Ottawa Hosp, Div Nephrol, Ottawa, ON, Canada
[14] Ottawa Hosp Res Inst, Ottawa, ON, Canada
[15] McGill Univ, Div Rheumatol, Hlth Ctr, Montreal, PQ, Canada
[16] Univ Ottawa, Ottawa Hosp, Div Rheumatol, Ottawa, ON, Canada
[17] Univ Toronto, Univ Hlth Network, Div Nephrol, Toronto, ON, Canada
[18] Univ Manitoba, Div Rheumatol, Winnipeg, MB, Canada
[19] Univ Alberta, Dept Pediat, Div Pediat Rheumatol, Edmonton, AB, Canada
[20] Univ Laval, Div Rheumatol, CISSS Chaudiere Appalaches, Quebec City, PQ, Canada
[21] Univ Calgary, Alberta Childrens Hosp, Dept Pediat, Div Pediat Rheumatol, Calgary, AB, Canada
[22] Western Univ, Dept Med, Div Rheumatol, London, ON, Canada