[1] Univ Calgary, Calgary, AB, Canada
[2] Hosp Special Surg, 535 E 70th St, New York, NY 10021 USA
[3] McGill Univ, Montreal, PQ, Canada
[4] MUHC, Res Inst, Montreal, PQ, Canada
[5] Laval Univ, Fac Med, Quebec City, PQ, Canada
[6] Univ Sherbrooke, Sherbrooke, PQ, Canada
[7] Univ Manitoba, Winnipeg, MB, Canada
[8] Univ Toronto, Toronto, ON, Canada
[9] Univ Western Ontario, Dept Med, St Josephs Hlth Ctr, London, ON, Canada
[10] Arthrit Program Res Grp, Newmarket, Suffolk, England
[11] Ctr Arthrit Excellence, Newmarket, Suffolk, England