Arnstad, Ellen Dalen http://orcid.org/0000-0003-0635-5198
Iversen, Johanne Marie
Uglem, Martin
Glerup, Mia
Romundstad, Pål Richard
Sand, Trond
Rygg, Marite
Funding for this research was provided by:
Norges Teknisk-Naturvitenskapelige Universitet
Article History
Received: 14 September 2020
Accepted: 5 October 2020
First Online: 5 November 2020
Ethics approval and consent to participate
: According to national regulations and in accordance with the Declaration of Helsinki, data protection authority and medical research ethical committee gave their approval (REK 2014/1081). Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.