Funding for this research was provided by:
the liaison committee for education, research and innovation in central norway supported this work (samarbeidsorganet mellom helse midt-norge rhf og ntnu).
Received: 23 November 2020
Accepted: 27 August 2021
First Online: 4 September 2021
: The study was approved by the Regional Committee for Medical and Health Research Ethics (No. 2016/716/REK Nord) and registered with the ISRCTN (ExternalRef removed) registry (trial ID: ISRCTN37530113). The study procedures were in accordance with the principles of the Declaration of Helsinki [CitationRef removed] and Good Clinical Practice (GCP) standards [CitationRef removed].
: All participants have consented.
: The authors declare that they have no competing interests.