[1] Hosp Sick Children Res Inst, Child Hlth Evaluat Sci, Toronto, ON, Canada
[2] Childrens Hosp Res Inst Manitoba, Winnipeg, MB, Canada
[3] Univ Manitoba, Max Rady Coll Med, Rady Fac Hlth Sci, Dept Pediat & Child Hlth, Winnipeg, MB, Canada
[4] Univ Sydney, Discipline Child & Adolescent Hlth, Sydney, Australia
[5] Univ Alberta, Fac Med & Dent, Cochrane Child Hlth, Edmonton, AB, Canada
[6] Univ Alberta, Fac Med & Dent, Alberta Res Ctr Hlth Evidence, Dept Pediat, Edmonton, AB, Canada
[7] Univ Lisbon, Fac Med, Clin Pharmacol & Therapeut, Lisbon, Portugal
[8] Univ Toronto, Dalla Lana Sch Publ Hlth, Div Biostat, Toronto, ON, Canada
[9] UCL, Dept Stat Sci, London, England
[10] Univ Manitoba, Rady Fac Med, Dept Pharmacol & Therapeut, Winnipeg, MB, Canada
[11] Natl Inst Hlth & Care Res NIHR, Alder Hey Clin Res Facil, Liverpool, England
[12] Imperial Coll London, Sect Neonatal Med, London, England
[13] Monash Univ, Dept Paediat, Melbourne, Australia
[14] Monash Childrens Hosp, Dev Paediat, Melbourne, Australia
[15] Univ Liverpool, Dept Publ Hlth Policy & Syst, Liverpool, England