Funding for this research was provided by:
Bundesministerium für Bildung und Forschung
Ministerium für Wissenschaft, Forschung und Kultur
Charité - Universitätsmedizin Berlin
Received: 3 June 2021
Accepted: 11 March 2022
First Online: 20 March 2022
: The study was reviewed and approved by the ethics committee of the Charité-Universitätsmedizin Berlin (EA2/147/17). We performed the study according to the principles of the Declaration of Helsinki. Due to the retrospective time series design, the data protection commissioner of the Charité-Universitätsmedizin Berlin allowed the use of anonymized patient data for research purposes without obtaining individual consent.
: Not applicable.
: The authors declare that they have no competing interests.