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Authors
Haapanen, Aleksi
Furuholm, Jussi
Snäll, Johanna
Auvinen, Anssi
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Funding
Funding for this research was provided by:
University of Helsinki
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Article History
Received: 19 October 2025
Accepted: 5 January 2026
First Online: 16 January 2026
Declarations
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: The study protocol was approved by the Internal Review Board of the Head and Neck Centre, Helsinki University Hospital, Helsinki, Finland (HUS/148/2022). Additionally, permission was granted by the Statistics Finland (TK/1917/07.03.00/2022). The study was conducted in adherence to the Declaration of Helsinki. No informed consent was needed due to the retrospective nature of the study.
: Not applicable.
: The authors declare no competing interests.
