[1] Montreal Gen Hosp, Div Clin Epidemiol, Montreal, PQ H3G 1A4, Canada
[2] Montreal Gen Hosp, Div Clin Immunol & Allergy, Montreal, PQ H3G 1A4, Canada
[3] St Josephs Hlth Ctr, Div Rheumatol, London, ON, Canada
[4] QE 2 Hlth Sci Ctr, Div Rheumatol, Halifax, NS, Canada
[5] Ottawa Gen Hosp, Div Rheumatol, Ottawa, ON K1H 8L6, Canada
[6] Winnipeg Hlth Sci Ctr, Winnipeg, MB, Canada
[7] Hop Notre Dame de Bon Secours, Div Rheumatol, Montreal, PQ H2L 4K8, Canada
[8] Univ Sherbrooke, Div Rheumatol, Sherbrooke, PQ J1K 2R1, Canada
[9] Toronto Western Hosp, Div Rheumatol, Toronto, ON M5T 2S8, Canada