[1] McMaster Univ, Dept Med, Hamilton, ON, Canada
[2] McMaster Univ, Michael G DeGroote Sch Med, Hamilton, ON, Canada
[3] Univ Toronto, Inst Hlth Policy Management & Evaluat, Toronto, ON, Canada
[4] Univ Toronto, St Michaels Hosp, Li Ka Shing Knowledge Inst, Toronto, ON, Canada