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Authors
Haugan, Ingvild
Flatby, Helene Marie
Ehrnström, Birgitta
Skei, Nina Vibeche
Mohus, Randi Marie
Solligård, Erik
Gran, Frode Width
Gustad, Lise Tuset
Lydersen, Stian
Ås, Christina Gabrielsen
Damås, Jan Kristian
Afset, Jan Egil
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Funding
Funding for this research was provided by:
NTNU Norwegian University of Science and Technology
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Article History
Received: 25 November 2025
Accepted: 9 April 2026
First Online: 22 April 2026
Declarations
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: The study was conducted in accordance with the Declaration of Helsinki and approved by the Regional Committee for Medical and Health Research Ethics, Norway (REK North, 2020/171888) and the Nord-Trøndelag Hospital Trust Data Access Committee (2020/8704). The data used in the study were anonymised registry data and hence informed consent was not applicable for this study and was waived by the Regional Committee for Medical and Health Research Ethics. Data were processed in compliance with GDPR, ensuring confidentiality and secure storage. The DPIA was approved by the Head of the Clinic of Laboratory Medicine, St. Olavs hospital.
: Not applicable.
: The authors declare no competing interests.
