Received: 10 September 2020
Accepted: 27 January 2021
First Online: 18 February 2021
Ethics approval and consent to participate
: Under the Dutch law for medical scientific research with human subjects, questionnaire surveys are not subject to approval by an institutional ethics committee. Respondents were informed that by filling out the questionnaire permission was given to use the data anonymously for research purposes.
: Not applicable.
: The authors declare that they have no competing interests.