Ohm, Eyvind https://orcid.org/0000-0002-3971-2262
Holvik, Kristin
Kjøllesdal, Marte Karoline Råberg
Madsen, Christian
Article History
Received: 8 July 2020
Accepted: 1 October 2020
First Online: 16 November 2020
Ethics approval and consent to participate
: The Regional Committees for Medical and Health Research Ethics in Norway provided advance approval for this study (REC approval number: 2014/1945).
: Not applicable
: The authors declare that they have no competing interests.