Rognmo, Kamilla http://orcid.org/0000-0002-6746-6548
Bergvik, Svein
Rosenvinge, Jan Harald
Bratlid, Katja Lovise
Friborg, Oddgeir
Funding for this research was provided by:
Helse Nord RHF (RUS1179-14)
Article History
Received: 8 August 2018
Accepted: 11 April 2019
First Online: 29 April 2019
Ethics approval and consent to participate
: The Regional Committee of Medical and Health Research Ethics approved the study (REK approval number: 2013/1790), and the study was performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and later amendments. All participants gave written informed consent prior to inclusion in the study.
: Not applicable
: The authors declare that they have no competing interests.
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