[1] Hosp Sick Children, Pediat Adv Care Team, Toronto, ON, Canada
[2] Hosp Sick Children, Dept Paediat, Div Paediat Med, Toronto, ON, Canada
[3] SickKids Res Inst, Child Hlth Evaluat Sci, Toronto, ON, Canada
[4] Inst Clin Evaluat Sci, Toronto, ON, Canada
[5] Univ Toronto, Inst Hlth Policy Management & Evaluat, Dalla Lana Sch Publ Hlth, Toronto, ON, Canada
[6] Univ Colorado, Adult & Child Consortium Hlth Outcomes Res & Deliv, Aurora, CO USA
[7] Childrens Hosp Colorado, Aurora, CO USA
[8] Univ Cincinnati, Dept Pediat, Coll Med, Cincinnati, OH USA
[9] Cincinnati Childrens Hosp Med Ctr, Div Hosp Med, Cincinnati, OH USA
[10] McMaster Univ, CanChild Ctr Childhood Disabil Res, Dept Hlth Policy, Hamilton, ON, Canada
[11] Univ Toronto, Lawrence S Bloomberg Fac Nursing, Toronto, ON, Canada
[12] Univ Penn, Perelman Sch Med, Dept Pediat & Med Eth, Philadelphia, PA USA
[13] Hosp Sick Children, Dept Paediat, Div Paediat Med, 555 Univ Ave, Toronto, ON M5G 1X8, Canada