Funding for this research was provided by:
The Royal Society (DH130079)
Heart Research UK
Received: 30 April 2018
Accepted: 23 October 2018
First Online: 6 December 2018
Ethics approval and consent to participate
: The local committee of the UK National Research Ethics Service approved the study (06/Q0508/124), and written consent was obtained from all subjects/guardians.
: Permissions: All parents of participants and participants gave consent and assent to participate in the study. Permission was also obtained from parents to publish anonymized patient data collected.
: The authors declare that they have no competing interests.
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