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Authors
Klein, Marcus O. https://orcid.org/0000-0003-3056-9794
Duncker, Nora
Thews, Alexander
Kalab, Michael https://orcid.org/0009-0000-1495-4524
Schulz-Jürgensen, Sebastian https://orcid.org/0009-0008-3685-0783
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Funding
Funding for this research was provided by:
Universitätsklinikum Schleswig-Holstein - Campus Kiel
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Article History
Received: 19 August 2025
Revised: 9 October 2025
Accepted: 17 October 2025
First Online: 19 November 2025
Declarations
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: This is an observational study. The Ethics Committee of the Medical Faculty of the Christian-Albrechts-University of Kiel has confirmed that no ethical consideration exists in both studies (studies D 422/13, D 439/13) which we compared here . Informed consent was obtained from all individual participants included in the study and their parents.
: The authors have no relevant financial or non-financial interests to disclose.
