Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (FKZ 01GL1711)
Received: 29 May 2020
Accepted: 2 September 2020
First Online: 13 September 2020
Ethics approval and consent to participate
: Informed consent was signed by all participating physicians. According to a statement of the Ethics Committee of the Hamburg Medical Association (processing number: PV5663) no ethics approval was needed for the study.
: Not applicable.
: The authors declare that they have no competing interests.