Hesjedal, Maria Bårdsen http://orcid.org/0000-0003-0982-1262
Åm, Heidrun
Sørensen, Knut H. http://orcid.org/0000-0003-0829-3496
Strand, Roger http://orcid.org/0000-0001-6159-1586
Article History
Received: 22 August 2019
Accepted: 9 March 2020
First Online: 16 March 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from all participants included in the study.