Funding for this research was provided by:
Schweizerische Akademie der Medizinischen Wissenschaften (Käthe-Zingg-Schwichtenberg fund)
Received: 29 October 2018
Accepted: 16 September 2019
First Online: 16 October 2019
Ethics approval and consent to participate
: The ethics committee of Northwest Switzerland (EKNZ) exempted this study from the ethics review according to the Human Research Act of Switzerland, as it did not involve collection of any health related data. This decision was informed to us through email communication dated 21st March 2016. We obtained oral informed consent from all respondents. This consent was audio-recorded and transcribed verbatim.
: Not Applicable
: The authors declare that they have no competing interest.