Received: 7 September 2021
Accepted: 13 November 2021
First Online: 4 December 2021
Change Date: 15 May 2022
Change Type: Update
Change Details: The Funding section has been updated.
: No informed consent or ethical approval was required because fully anonymized data was used. The collection and use of anonymized data for research purposes are regulated under the Bavarian Hospital Law (Bayerisches Krankenhausgesetz Art. 27 Abs. (CitationRef removed)). The department chairs granted the permission to access the data.
: Not applicable.
: TD, FB, AD, RG, JB, CK, CS, CJ, HF, HJS, SBM declare that they have no financial or non-financial conflict of interest.