Received: 23 April 2021
Accepted: 4 July 2021
First Online: 10 July 2021
: Our study was approved by the Swiss ethic committee (BASEC ID 2020–00935) and was conducted in accordance with the Declaration of Helsinki.
: Participation in the study was voluntary and the questionnaire was completed anonymously. Participants were informed before answering the survey that it would lead to a scientific publication and that they accepted this if they decided to answer the questionnaire.
: The authors declare that they have no competing interests.