Funding for this research was provided by:
University of Bern
Article History
Accepted: 26 November 2020
First Online: 5 December 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest with regard to this study.
: There has been complete compliance with ethical standards in this study. Ethical approval was not required for this study.
: Informed consent was not necessary for this study.