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Authors
Kaier, Klaus
Hazard, Derek
Czerny, Martin
Rilinger, Jonathan
Hilgendorf, Ingo
Wolf, Dennis
Westermann, Dirk
von zur Mühlen, Constantin
Valina, Christian
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Funding
Funding for this research was provided by:
Universitätsklinikum Freiburg
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Article History
Received: 1 June 2026
Accepted: 10 August 2026
First Online: 18 August 2026
Declarations
Ethics approval and consent to participate: When analyzing data from the German Federal Statistical Office (Destatis). Under the German Federal Statistics Act (Bundesstatistikgesetz, BStatG) and the corresponding Länder statistics regulations, the scientific use of these anonymized, aggregated official statistics does not require ethics-committee approval or individual patient consent, because researchers receive no individual-level identifiable data. No approval or consent was therefore required for this study.
Consent for publication: Not applicable.
Competing interests: The authors declare no competing interests.
