Funding for this research was provided by:
Munich Centre for Health
Received: 9 July 2020
Accepted: 13 December 2020
First Online: 7 January 2021
Ethics approval and consent to participate
: The Ethics Committee of the Medical Faculty, Munich University, approved the study (Nr. 327–15). All physicians received written and verbal information prior to data collection. Participation was voluntary and consent was obtained.
: Not applicable.
: All authors declare that they have no competing interests.