Funding for this research was provided by:
Norges Forskningsråd (256633)
Received: 6 November 2019
Accepted: 20 February 2020
First Online: 28 February 2020
Ethics approval and consent to participate
: The study was approved by the Regional Committees for Medical and Health Research Ethics in South East Norway (No: 2016/2300), and the trial was prospectively registered at ExternalRef removed NCT03212118 (registered July 11, 2017). Written informed consent was obtained from all participants prior to conducting interviews.
: Not applicable.
: The authors declare that they have no competing interests.