Received: 6 May 2021
Accepted: 29 August 2021
First Online: 15 September 2021
: All protocols are carried out in accordance with relevant guidelines and regulations. We obtained written informed consent from all children that participated in this study and one of their parents. Participants were made fully aware of the study. The study protocol was approved by the ethics committee of the Ghent University Hospital (B670201938818).
: Not applicable.
: The authors declare that they have no competing interests.