Received: 11 February 2021
Accepted: 20 May 2021
First Online: 24 June 2021
: The ethical approval for conducting this survey was sought by the Ethics Commission Northwestern and Central Switzerland (Ethikkommission Nordwest- und Zentralschweiz – EKNZ). The ethical investigation did however show that this was not a study subject to approval in the sense of cantonal and federal legislation, as the project was not deemed a research study as defined by to the Human Research Act Art. 2. Therefore, the EKNZ did not issue a formal ethical approval but instead concluded that the study did meet the general ethical principles for research involving human beings (cf. Art. 51 para. 2 Human Research Act). All methods in this study were carried out in accordance with relevant guidelines and regulations and an informed consent was obtained from all participants in the study.
: Not applicable.
: The authors declare that they have no competing interests.