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Authors
Danielsen, Marit http://orcid.org/0000-0002-2488-2218
Bjørnelv, Sigrid
Weider, Siri
Myklebust, Tor Åge
Lundh, Henrik
Rø, Øyvind
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Article History
Received: 29 June 2020
Accepted: 3 November 2020
First Online: 2 December 2020
Ethics approval and consent to participate
: The Regional Committee for Medical and Health Ethics (REC Central) (Project number: 2009/1864) approved the study. All participants provided written informed consent in accordance with the Declaration of Helsinki.
: All participants provided written consent for publication. The Regional Committee for Medical and Health Research Ethics approved the consent form. Project number: 2009/1864.
: The authors are responsible for the writing and content of this paper, and no conflicts of interest are reported.
