Funding for this research was provided by:
Fonds Wetenschappelijk Onderzoek
Received: 7 February 2020
Accepted: 22 April 2020
First Online: 14 May 2020
Ethics approval and consent to participate
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional (UZ Leuven) and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Not applicable.
: The authors declare that they have no competing interests.