Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (01EA1409E)
Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH)
Received: 5 October 2020
Accepted: 6 December 2020
First Online: 16 March 2021
: This study was conducted in accordance with the Declaration of Helsinki. All procedures involving human subjects were approved by the ethics committee of the Bavarian Chamber of Physicians in Munich. All participants gave their written, informed consent.
: Not applicable.
: The authors declare that they have no competing interests.