Funding for this research was provided by:
University of Zurich
Article History
Received: 21 August 2020
Revised: 9 November 2020
Accepted: 2 December 2020
First Online: 14 December 2020
Compliance with ethical standards
:
: The authors declare that the article and its content were composed in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.