Funding for this research was provided by:
helse nord rhf (HN2012/6884, HNF1405-18)
Received: 29 July 2021
Accepted: 19 September 2021
First Online: 28 September 2021
: The study was prospectively approved by the regional ethical committee, REK North with the registration number: REK 2010/397–10. All participants signed a written consent.
: “Not applicable”
: There are no competing interest to report.