[1] McGill Univ, Dept Med, Montreal, PQ, Canada
[2] McGill Univ, Ctr Hlth, Ctr Outcomes Res & Evaluat, Res Inst, 5252 Maisonneuve O,Room 3E-11, Montreal, PQ H4A 3S5, Canada
[3] McGill Univ, Ctr Hlth, Res Inst, Montreal, PQ, Canada
[4] McGill Univ, Montreal, PQ, Canada
[5] Univ British Columbia, Dept Med Endocrinol, Vancouver, BC, Canada
[6] Univ Toronto, Dept Med, Toronto, ON, Canada
[7] Univ Calgary, Dept Med, McCaig Inst Bone & Joint Hlth, Calgary, AB, Canada
[8] Univ Calgary, McCaig Inst Bone & Joint Hlth, Calgary, AB, Canada
[9] Univ Toronto, Dept Epidemiol, Dalla Lana Sch Publ Hlth, Toronto, ON, Canada
[10] McMaster Univ, Dept Med, Hamilton, ON, Canada
[11] McGill Univ, Ctr Hlth, Div Clin Epidemiol, Montreal, PQ, Canada