Funding for this research was provided by:
Department of Research, Innlandet Hospital Trust (NA)
Article History
Received: 13 February 2020
Accepted: 14 July 2020
First Online: 22 July 2020
Ethics approval and consent to participate
: The study was approved by the Norwegian Regional Committee for Medical and Health Research Ethics, PB 1130, Blindern, 0318 Oslo, Norway (reference number 2012/966). Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.