Received: 6 May 2020
Accepted: 1 July 2020
First Online: 10 July 2020
Change Date: 14 August 2020
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via the original article.
Ethics approval and consent to participate
: Not applicable.
: Parents’ consent for publication was obtained.
: The authors declare that they have no competing interests.