[1] Univ Toronto, Credit Valley Rheumatol, Mississauga, ON, Canada
[2] McMaster Univ, Div Rheumatol, St Josephs Healthcare, Hamilton, ON, Canada
[3] Univ Hlth Network, Toronto Gen Hosp Res Inst, Toronto, ON, Canada
[4] Univ Hlth Network, Toronto, ON, Canada
[5] Arthrit Program Res Grp, Newmarket, Suffolk, England
[6] Ontario Rheumatol Assoc, William Osler Hlth Syst, Brampton, ON, Canada
[7] Toronto Western Hosp Toronto, Schroeder Arthrit Inst, Krembil Res Inst, Toronto, ON, Canada
[8] Univ Toronto, Dept Med, Div Rheumatol, Toronto, ON, Canada
[9] Univ British Columbia, Vancouver, BC, Canada
[10] William Osler Hlth Syst, Brampton Civ Hosp, Brampton, ON, Canada
[11] Univ Toronto, Toronto, ON, Canada
[12] Univ Ottawa, Ottawa Hosp Res Inst, Ottawa, ON, Canada