Vleeshouwers, J.
Knardahl, S.
Christensen, J. O.
Article History
Received: 19 February 2019
Accepted: 14 November 2019
First Online: 11 December 2019
Ethics approval and consent to participate
: Ethical approval was obtained from the Regional Committee for Medical and Health Research Ethics (REK). Written participant consent was obtained as per REK guidelines. Data collection and –storage guidelines, as set by the Norwegian Data inspectorate, were followed.
: No competing interests exist.