Received: 1 September 2020
Accepted: 3 August 2021
First Online: 21 August 2021
: The study protocol was approved by the Medical Ethics Review Board of the Erasmus Medical Centre, case number: MEC-2017–571. Participation in the study was voluntary and could be terminated at any point; incomplete questionnaires were discarded. By signing up to the panel of the sampling agency and submitting their data after completing the full questionnaire, respondents gave informed consent to the use of their responses for the purpose of this study.
: Not applicable.
: The authors declare that they have no competing interests.