Funding for this research was provided by:
Instituut Gak (2016 – 756)
Received: 14 November 2019
Accepted: 4 February 2020
First Online: 7 February 2020
Ethics approval and consent to participate
: The Medical Ethics Review Committee of the VU University Medical Center confirmed that the Medical Research Involving Human Subjects Act (‘Wet Medisch-wetenschappelijk Onderzoek met mensen’) does not apply to this study and that an official approval is not required.
: Not applicable.
: The authors declare that they have no competing interests.