Standal, Martin Inge http://orcid.org/0000-0002-8552-3753
Hjemdal, Odin
Aasdahl, Lene
Foldal, Vegard Stolsmo
Johnsen, Roar
Fors, Egil Andreas
Hagen, Roger
Funding for this research was provided by:
Norges Forskningsråd (256633)
Article History
Received: 25 August 2020
Accepted: 6 April 2021
First Online: 15 April 2021
Declarations
:
: The study was approved by the Regional Committee for Medical and Health Research Ethics in South East Norway (No: 2016/2300). Written informed consent was obtained from all participants in the study.
: Not applicable.
: The authors declare that they have no competing interests.