Received: 11 December 2020
Accepted: 26 January 2021
First Online: 5 February 2021
Ethics approval and consent to participate
: The study was approved by the Cantonal Ethics Committee of Bern (Project-ID 2020–00973). Participants either agreed to a general research consent or, for participants with no registered general research consent status (neither agreement nor rejection), a waiver of consent was granted by the ethics committee.
: Not applicable.
: The authors declare that they have no competing interests.