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Authors
Simensen, Randi https://orcid.org/0000-0001-5291-9375
Rehn, Marius
Hagemo, Jostein
Smalberget, Live
Heyerdahl, Fridtjof
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Funding
Funding for this research was provided by:
University of Oslo
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Article History
Received: 23 December 2025
Accepted: 10 August 2026
First Online: 19 August 2026
Declarations
Ethics approval and consent to participate: The PreMeFen trial and the associated implementation survey were approved by the Regional Committees for Medical and Health Research Ethics, South-East Norway (reference 255159). All ambulance personnel were informed about data collection and provided written consent after completion of mandatory trial training.
Consent for publication: Not applicable.
Competing interests: The authors declare no competing interests.
