Funding for this research was provided by:
KU Leuven (Leuven University Fund, 'Opening the future')
H2020 European Research Council (804881)
Received: 18 April 2020
Accepted: 3 August 2020
First Online: 10 September 2020
Ethics approval and consent to participate
: This study was carried out in accordance with the recommendations of the internal guidelines of the Ethics Committee of the University Hospitals Leuven. All parent participants gave written informed consent to participate in accordance with the Declaration of Helsinki. The protocol was approved by The Ethics Committee of the University Hospitals Leuven on 3 February 2017 (Belgian Registration Number B322201731147). The study was performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.
: Not applicable.
: The authors declare that they have no competing interests.