[1] Dalhousie Univ, Clin Trial Res Ctr, IWK Hlth Ctr, Dept Pediat, Halifax, NS B3K 6R8, Canada
[2] Dalhousie Univ, Clin Trial Res Ctr, IWK Hlth Ctr, Dept Bioeth, Halifax, NS B3K 6R8, Canada
[3] Dalhousie Univ, Clin Trial Res Ctr, IWK Hlth Ctr, Hlth Law Inst, Halifax, NS B3K 6R8, Canada
[4] IWK Hlth Ctr, Hlth Policy & Translat Grp, Canadian Ctr Vaccinol, Halifax, NS B3K 6R8, Canada