Received: 25 January 2021
Accepted: 17 March 2021
First Online: 17 May 2021
: The local Research Ethics Committee (CER-VD) confirmed that the project complied with Swiss ethical regulations on studies without identifying data collection (REQ-2018-00146). Participants received information about the study and the right not to participate, and gave their informed consent before completing the questionnaire.
: Not applicable.
: The authors declare that they have no competing interests.