Søvik, Signe http://orcid.org/0000-0003-4524-2268
Isachsen, Marie Susanna
Nordhuus, Kine Marie
Tveiten, Christine Kooy
Eken, Torsten http://orcid.org/0000-0002-5943-4538
Sunde, Kjetil http://orcid.org/0000-0001-9518-5199
Brurberg, Kjetil Gundro http://orcid.org/0000-0002-5920-4652
Beitland, Sigrid http://orcid.org/0000-0001-8803-0105
Article History
Received: 14 November 2018
Accepted: 14 January 2019
First Online: 6 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest regarding this study.
: An approval by an ethics committee was not applicable.