Gravås, Else Marit Holen https://orcid.org/0000-0002-2325-4746
Tveter, Anne Therese
Nossum, Randi
Eide, Ruth Else Mehl
Klokkeide, Åse
Matre, Karin Hoegh
Olsen, Monika
Andreassen, Øyvor
Østerås, Nina
Haugen, Ida Kristin
Kjeken, Ingvild
Funding for this research was provided by:
The Interregional research funds (HELSEFORSK) via The Research Council of Norway (243758)
Article History
Received: 28 November 2018
Accepted: 12 April 2019
First Online: 30 April 2019
Ethics approval and consent to participate
: The study was approved by the Regional Committees for Medical Research Ethics (Reference number: 2012/2265/REK South East Norway). Written informed consent was obtained from all participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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