[1] Sinai Hlth Syst, Schwartz Reisman Emergency Med Inst, Toronto, ON, Canada
[2] Univ Toronto, Dalla Lana Sch Publ Hlth, Div Clin Publ Hlth, Toronto, ON, Canada
[3] Univ Toronto, Fac Med, Dept Family Med, Toronto, ON, Canada
[4] Fraser Hlth Author, Surrey, BC, Canada
[5] McMaster Univ, Dept Family Med, Hamilton, ON, Canada
[6] St Michaels Hosp, Li Ka Shing Knowledge Inst, Ctr Urban Hlth Solut, Toronto, ON, Canada
[7] St Michaels Hosp, Dept Family & Community Med, Toronto, ON, Canada
[8] Sinai Hlth Syst, Lunenfeld Tanenbaum Res Inst, Toronto, ON, Canada