Eldal, Kari http://orcid.org/0000-0001-7690-4362
Natvik, Eli
Veseth, Marius
Davidson, Larry
Moltu, Christian
Article History
Received: 10 March 2019
Accepted: 20 June 2019
First Online: 10 July 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: The Regional Committee for Medical and Health Research Ethics approved the study (2016/30 REKvest).