[1] Sunnybrook Res Inst, Toronto, ON, Canada
[2] McGill Univ, Ctr Hlth, Montreal, PQ, Canada
[3] Ontario Rheumatol Assoc, William Osler Hlth Syst, Brampton, ON, Canada
[4] Univ Calgary, Calgary, AB, Canada
[5] Womens Coll Hosp, Toronto, ON, Canada
[6] Univ Toronto, Sinai Hlth Syst, Toronto, ON, Canada
[7] Inst Clin Evaluat Sci, Toronto, ON, Canada
[8] Ingersol, Toronto, ON, Canada
[9] Western Univ, Dept Med, Div Rheumatol, London, ON, Canada
[10] Southlake Reg Hlth Ctr, Newmarket, ON, Canada