Heydweiller, Andreas
Kurz, Ralf
Schröder, Arne http://orcid.org/0000-0003-1552-6163
Oetzmann von Sochaczewski, Christina http://orcid.org/0000-0002-3469-777X
Funding for this research was provided by:
Universitätsklinikum Bonn
Article History
Received: 29 July 2021
Accepted: 11 October 2021
First Online: 20 October 2021
Declarations
:
: Strictly anonymous aggregated data such as the German national hospital statistics are exempt from ethical approval [CitationRef removed]. As such no regulatory body may be able to grant ethical approval for something that is approved by law itself. The owner of the data—the <i>Statistisches Bundesamt</i> (German federal statistics office)—licensed the data to the authors and did thereby authorise them to use and analyse the strictly anonymous data.
: Not applicable.
: The authors declare that they have no competing interests.