[1] Univ Toronto, Mt Sinai Hosp, Granovsky Gluskin Family Med Ctr, Toronto, ON M5T 3L9, Canada
[2] Univ Toronto, Dept Family & Community Med, Family Healthcare Res Unit, Toronto, ON M5T 3L9, Canada
[3] McMaster Univ, Ctr Hlth Econ & Policy Anal, Hamilton, ON, Canada
[4] McMaster Univ, Dept Hlth Aging & Soc, Hamilton, ON, Canada
[5] Univ Ottawa, Dept Epidemiol & Community Med, Ottawa, ON, Canada
[6] Univ Ottawa, Inst Populat Hlth, Ottawa, ON, Canada
[7] Univ Ottawa, Childrens Hosp Eastern Ontario, Res Inst, Ottawa, ON, Canada
[8] Childrens Hosp Eastern Ontario, Genet Patient Serv Unit, Ottawa, ON K1H 8L1, Canada
[9] Dalhousie Univ, Canc Outcomes Res Program, Halifax, NS, Canada
[10] Dalhousie Univ, Dept Med, Halifax, NS, Canada