Einstad, Marte Stine
Saltvedt, Ingvild
Lydersen, Stian
Ursin, Marie H.
Munthe-Kaas, Ragnhild
Ihle-Hansen, Hege
Knapskog, Anne-Brita
Askim, Torunn
Beyer, Mona K.
Næss, Halvor
Seljeseth, Yngve M.
Ellekjær, Hanne
Thingstad, Pernille
Article History
Received: 2 December 2020
Accepted: 15 January 2021
First Online: 5 February 2021
Ethics approval and consent to participate
: The present study was carried out according to the Declaration of Helsinki, and participation was voluntary and based on written informed consent from the participant, or, in cases where participants were not able to give consent themselves, by their proxy. The study has been approved by the Regional Committee for Medical and Health Research Ethics in North, REK Nord (REC number 2015/171). ExternalRef removed Identifier: NCT02650531.
: Not applicable.
: ABK and IS have been investigators in the drug trial Boehringer-Ingelheim 1346.0023, and ABK has also been an investigator for Roche BN29553. The remaining authors declare no conflicts interest.