Funding for this research was provided by:
Heart and Stroke Foundation of Canada (NA)
Ted Rogers Centre for Heart Research (NA)
Received: 7 August 2019
Accepted: 20 January 2020
First Online: 29 January 2020
Ethics approval and consent to participate
: The protocol was approved by the Research Ethics Board at SickKids Hospital (1000011232). Written informed consent to participate was obtained from each participant and/or parent/legal guardian through the Heart Centre Biobank Registry and study protocols adhered to the Declaration of Helsinki.
: Written informed consent for publication of aggregate findings was obtained from each participant and/or parent/legal guardian through the Heart Centre Biobank Registry.
: The authors declare that they have no competing interests.