Funding for this research was provided by:
Innlandet Hospital Trust (n.a.)
Oslo University Hospital (n.a.)
Received: 16 June 2019
Accepted: 1 July 2020
First Online: 9 July 2020
Ethics approval and consent to participate
: The study was approved by the Norwegian Regional Committees for Medical and Health Research Ethics, PB 1130, Blindern, 0318 Oslo, Norway (reference number 2012/966 with an amendment of June 28, 2018). The study was performed in accordance with the Declaration of Helsinki including written informed consent from all participants before inclusion.
: Not applicable.
: The authors declare that there are no conflicts of interest.