[1] Univ Toronto, Inst Med Sci, Toronto, ON, Canada
[2] Univ Hlth Network, Krembil Res Inst, Hlth Care & Outcomes Res, Toronto, ON, Canada
[3] Univ Toronto, Inst Hlth Policy Management & Evaluat, Toronto, ON, Canada
[4] Univ Toronto, Dalla Lana Sch Publ Hlth, Toronto, ON, Canada
[5] St Michaels Hosp, Li Ka Shing Ctr Healthcare Analyt Res & Training, Toronto, ON, Canada
[6] Inst Work Hlth, Musculoskeletal Hlth & Outcomes Res, Toronto, ON, Canada
[7] Hlth Qual Ontario, Qual Stand, Toronto, ON, Canada
[8] London Hlth Sci Ctr, Div Orthopaed Surg, London, England