Gustafsson, Miriam K. https://orcid.org/0000-0003-4151-393X
Romundstad, Pål R.
Stafne, Signe Nilssen
Helvik, Anne-Sofie
Stunes, Astrid Kamilla
Mørkved, Siv
Salvesen, Kjell Åsmund
Thorsby, Per Medbøe
Mosti, Mats Peder
Syversen, Unni
Funding for this research was provided by:
Helse Midt-Norge
Article History
Received: 10 August 2018
Accepted: 11 February 2019
First Online: 20 February 2019
Ethics approval and consent to participate
: The Regional Committee for Medical and Health Research Ethics, Norway (REK 4.2007.81) approved the study. The study was conducted in accordance with the ethical principles in the declaration of Helsinki. Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interest.
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