Rasmussen, Kristen http://orcid.org/0000-0002-9564-7274
Langdalen, Henrik
Sollid, Stephen J. M.
Abrahamsen, Eirik Bjorheim
Sørskår, Leif Inge K.
Bondevik, Gunnar Tschudi
Abrahamsen, Håkon B.
Article History
Received: 8 August 2018
Accepted: 28 December 2018
First Online: 7 January 2019
Ethics approval and consent to participate
: The study was approved by the Norwegian Centre for Research Data (Ref. no. 2016/45723) and was exempted from ethical approval by the Regional Committee for Medical and Health Research Western Norway (Ref. no. 2015/2249). Consent to participate in the study was given at the start of the survey.
: Not applicable.
: The authors declare that they have no competing interests.
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