title: Reply.
authors.affiliation: Toronto, Ontario, Canada.
authors.forename: Uri
authors.initials: U
authors.lastname: Elbaz
authors.affiliation: Toronto, Ontario, Canada.
authors.forename: Kamiar
authors.initials: K
authors.lastname: Mireskandari
authors.affiliation: Toronto, Ontario, Canada.
authors.forename: Nasrin
authors.initials: N
authors.lastname: Tehrani
authors.affiliation: Toronto, Ontario, Canada.
authors.forename: Carl
authors.initials: C
authors.lastname: Shen
authors.affiliation: Toronto, Ontario, Canada.
authors.forename: Muhammad Saad
authors.initials: MS
authors.lastname: Khan
authors.affiliation: Toronto, Ontario, Canada.
authors.forename: Sara
authors.initials: S
authors.lastname: Williams
authors.affiliation: Toronto, Ontario, Canada.
authors.forename: Asim
authors.initials: A
authors.lastname: Ali
mesh_terms: D002648:Child; D002675:Child, Preschool; D042783:Endothelial Cells; D006801:Humans