Received: 14 October 2020
Accepted: 14 December 2020
First Online: 12 January 2021
Ethics approval and consent to participate
: The study protocol was reviewed by the ethics committee Arnhem/Nijmegen, the Netherlands (No NL59142.091.16). All patients and volunteers received information and gave written informed consent prior to enrolment.
: The authors declare that they have no competing interests.