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Authors
Roesslein, Martin
Ortiz-Lucas, Paula
Buerkle, Hartmut
Loop, Torsten
Semmelmann, Axel
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Funding
Funding for this research was provided by:
Universitätsklinikum Freiburg
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Article History
Received: 6 January 2026
Accepted: 6 May 2026
First Online: 13 May 2026
Declarations
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: The study was conducted in accordance with the ethical standards of the Declaration of Helsinki, reviewed and approved by the local ethics committee of the University Medical Center Freiburg, Germany (EK 164/19). All data were analyzed in anonymized form; therefore, informed consent was not required according to national regulations. The clinical research project is a retrospective internal study using patient data collected during routine care. Obtaining consent retrospectively would involve a disproportionately high amount of effort. In accordance with the duty to provide information, all patients are informed that their data will be used anonymously for research purposes. Only those patients who did not object to this were included in the analysis. This was confirmed by the Ethics Committee of the University Medical Center Freiburg under reference number EK 164/19.
: Not applicable.
: The authors declare no competing interests.
