Funding for this research was provided by:
Universitätsklinikum Düsseldorf. Anstalt öffentlichen Rechts
Received: 6 January 2021
Accepted: 1 July 2021
First Online: 14 July 2021
: The project has been approved by the ethics committee at the Medical Faculty of Heinrich Heine University Düsseldorf (no. 2020–1067) and has been performed in accordance with the ethical standards as laid down in the 2013 Declaration of Helsinki. Informed consent was obtained from all individual participants included in the study.
: All co-authors have read the text and approved the publication.
: The authors declare that they have no conflict of interest.