Funding for this research was provided by:
Prinses Beatrix Spierfonds (W.OB16-20)
Received: 20 February 2020
Accepted: 7 September 2020
First Online: 11 September 2020
Ethics approval and consent to participate
: This study was approved by the medical ethical committee of Arnhem–Nijmegen in the Netherlands (Registration number NL58988.091.16). Informed consent was obtained from all participants and, in the cases where the participants were under 16 years of age, from their parents as well.
: Not applicable.
: The authors report no conflicts of interest.