[1] Univ Toronto, Dept Med, Toronto, ON, Canada
[2] Univ Toronto, Dept Hlth Policy Management & Evaluat, Toronto, ON, Canada
[3] Inst Clin Evaluat Sci, Toronto, ON, Canada
[4] Univ Hlth Network, Div Gen Internal Med & Clin Epidemiol, Toronto, ON, Canada
[5] Univ Hlth Network, Womens Hlth Program, Toronto, ON, Canada
[6] Univ Hlth Network, Div Neurol, Toronto, ON, Canada
[7] Univ Calgary, Dept Clin Neurosci, Calgary, AB T2N 1N4, Canada
[8] Univ Calgary, Dept Med, Calgary, AB T2N 1N4, Canada
[9] Univ Calgary, Dept Community Hlth Sci, Calgary, AB T2N 1N4, Canada