[1] McMaster Univ, Fac Hlth Sci, Hamilton, ON, Canada
[2] Univ Toronto, Temerty Fac Med, Toronto, ON, Canada
[3] McMaster Univ, Dept Hlth Res Methods Evidence & Impact, Fac Hlth Sci, Hamilton, ON, Canada
[4] Virginia Commonwealth Univ, Sch Med, Richmond, VA USA
[5] Univ Western Ontario, Schulich Sch Med & Dent, Windsor Campus, Windsor, ON, Canada
[6] Univ Ottawa, Fac Med, Ottawa, ON, Canada
[7] Mayo Clin, Alix Sch Med, Rochester, MN USA