[1] Univ Calgary, Cumming Sch Med, Dept Med, Calgary, AB, Canada
[2] Univ Ottawa, Cochrane Musculoskeletal, Ottawa, ON, Canada
[3] Western Univ, Schulich Sch Med & Dent, Dept Med, London, ON, Canada
[4] Univ Calgary, Cumming Sch Med, Dept Med, 3280 Hosp Dr NW, Calgary, AB T2N 4Z6, Canada
[5] Univ Calgary, Cumming Sch Med, Dept Community Hlth Sci, 3280 Hosp Dr NW, Calgary, AB T2N 4Z6, Canada
[6] Arthrit Res Canada, Vancouver, BC, Canada
[7] McGill Univ, Dept Med, Montreal, PQ, Canada
[8] Univ British Columbia, Div Rheumatol, Vancouver, BC, Canada
[9] Dalhousie Univ, Dept Med, Halifax, NS, Canada
[10] Mt Sinai Hosp, Div Rheumatol, Toronto, ON, Canada
[11] Arthrit Program Res Grp, Newmarket, ON, Canada
[12] Univ Hlth Network, Toronto Gen Hosp, Res Inst, Toronto, ON, Canada
[13] Univ Toronto, Dept Med, Toronto, ON, Canada
[14] Univ Saskatchewan, Coll Med, Div Rheumatol, Dept Med, Saskatoon, SK, Canada
[15] Cornell Univ, Hosp Special Surg, Weill Cornell Med, New York, NY 10021 USA
[16] MEM UNIV NEWFOUNDLAND, DEPT MED, St John A1B 3V6, NF, Canada
[17] Canadian Arthrit Patient Alliance, Toronto, ON, Canada
[18] Univ Ottawa, Dept Med, Ottawa, ON, Canada
[19] Univ Ottawa, Sch Epidemiol & Publ Hlth, Ottawa, ON, Canada
[20] McMaster Univ, Dept Med, Div Gen Internal Med, Hamilton, ON, Canada
[21] Univ British Columbia, Sch Populat & Publ Hlth, Vancouver, BC, Canada