Funding for this research was provided by:
Received: 29 June 2020
Accepted: 13 October 2020
First Online: 11 November 2020
Ethics approval and consent to participate
: The Regional Committee for Medical Research Ethics in South East Norway approved the study (Ref. 2015/2432), and the trial was registered at ExternalRef removed in September 2016, NCT02905383. All participants provided written informed content, and the project was conducted according to the World Medical Association Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.