[1] Univ Toronto, St Michaels Hosp, Temerty Fac Med, Toronto, ON, Canada
[2] Univ Toronto, St Michaels Hosp, Dept Family & Community Med, Toronto, ON, Canada
[3] St Michaels Hosp, Li Ka Shing Know ledge Inst, MAP Ctr Urban Hlth Solut, Toronto, ON, Canada
[4] ICES Centra, Toronto, ON, Canada
[5] Univ Toronto, Inst Hlth Policy Management & Evaluat, Toronto, ON, Canada
[6] London Sch Econ & Polit Sci, Dept Hlth Policy, London, England
[7] Univ Amsterdam, Dept Publ & Occupat Hlth, Amsterdam UMC, Amsterdam, Netherlands
[8] Norwegian Inst Publ Hlth, Cluster Hlth Serv Res, Div Hlth Serv, Oslo, Norway
[9] Univ Oulu, Res Unit Populat Hlth, Oulu, Finland
[10] Oulu Univ Hosp, Med Res Ctr, Oulu, Finland
[11] Univ Oulu, Oulu, Finland