[1] Univ Toronto, Inst Hlth Policy Management & Evaluat, Toronto, ON, Canada
[2] Inst Clin Evaluat Sci, Toronto, ON, Canada
[3] Bruyere Res Inst, Ottawa, ON, Canada
[4] Ottawa Hosp, Ottawa Hosp Res Inst, Clin Epidemiol Program, Ottawa, ON, Canada
[5] McMaster Univ, Dept Family Med, Hamilton, ON, Canada
[6] Univ Ottawa, Dept Med, Div Palliat Care, Ottawa, ON, Canada
[7] Univ Toronto, Inst Hlth Policy Management & Evaluat, 155 Coll St, Toronto, ON M5T 3M6, Canada