[1] Unity Hlth Toronto, St Michaels Hosp, Li Ka Shing Knowledge Inst, Musculoskeletal Hlth & Outcomes Res, 30 Bond St, Toronto, ON M5B 1W8, Canada
[2] Univ Toronto, Inst Hlth Policy Management & Evaluat, Hlth Sci Bldg,155 Coll St,Suite 425, Toronto, ON M5T 3M6, Canada
[3] Univ Toronto, Temerty Fac Med, Dept Surg, 149 Coll St,5th Floor, Toronto, ON M5T 1P5, Canada
[4] Univ Toronto, Temerty Fac Med, Dept Phys Therapy, 160-500 Univ Ave, Toronto, ON M5G 1V7, Canada