Funding for this research was provided by:
Received: 17 March 2021
Accepted: 20 September 2021
First Online: 9 October 2021
: The study was approved by an institutional review board (CPP Est III; 12 March 2013, ID-RCB no.: 2012-A00787-36) and registered with the French Data Protection Authority (CNIL; EGY/VCS/AR135993). A written consent form was signed by the child and at least one parent after they had read an information note.
: Not applicable.
: The authors declare no competing interests.