Funding for this research was provided by:
Research Unit of Early Intervention of Genetically Related Childhood Cardiovascular Disease (2018RU002)
Received: 10 December 2019
Accepted: 3 June 2020
First Online: 15 June 2020
Ethics approval and consent to participate
: Not applicable.
: Consent has been given by the parents.
: None of the authors have any financial or any non-financial competing interests to declare in relation to this manuscript.