Funding for this research was provided by:
Laerdal Foundation for Acute Medicine
Text and Data Mining valid from 2019-01-10
Received: 6 November 2018
Accepted: 28 December 2018
First Online: 10 January 2019
Ethics approval and consent to participate
: The Regional Ethics Board of North Norway concluded that the study did not need an ethical approval (2014/351), and all participants contributed voluntarily and signed an informed consent form.
: Not applicable
: The authors declare that they have no competing interests.
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