Funding for this research was provided by:
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (32003B_163379)
Received: 25 October 2019
Accepted: 21 September 2020
First Online: 29 September 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of the Canton of Vaud in Switzerland (2017–00522). Participants were informed about the study in a letter and provided their consent by participating in the online survey. Neither written nor verbal consent was explicitly obtained. The Ethics Committee of the Canton of Vaud approved this form of consent.
: Not applicable.
: The authors declare that they have no competing interests.