Andersen, Eivind
Bang-Kittilsen, Gry
Bigseth, Therese Torgersen
Egeland, Jens
Holmen, Tom Langerud
Martinsen, Egil Wilhelm
Stensrud, Trine
Engh, John Abel
Article History
Received: 2 April 2020
Accepted: 19 August 2020
First Online: 27 August 2020
Ethics approval and consent to participate
: The study was approved by the Regional Ethics Committee for Medical Research, REC south east Norway (2014/372). Initial information about the study was given to eligible patients by clinical staff in the outpatient clinic or in primary health services. Written consent was obtained from those eligible patients who understood the nature of the research and were willing to participate.
: Not applicable.
: The authors declare that they have no competing interests.