Received: 7 April 2020
Accepted: 21 September 2020
First Online: 27 September 2020
Ethics approval and consent to participate
: All data were anonymized before analysis. No sensitive participant information is included in the article. All participants signed written informed consent before inclusion in the study. The ethics committee decided approval was not necessary for these circumstances.
: Not applicable.
: All authors declare that they have no competing interests.