Andersen, Siri Kojen
Hustveit, Ragnhild
Frøland, Erlend
Uleberg, Oddvar
Krüger, Andreas
Klepstad, Pål
Nordseth, Trond http://orcid.org/0000-0001-8207-078X
Article History
Received: 21 January 2019
Accepted: 28 December 2019
First Online: 14 January 2020
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: The Regional Committee for Medical and Health Research Ethics in Central Norway assessed the study (Reference Number 2116/845) and waived the need for patient consent according to the regulations in the Norwegian Health Research Act.