Funding for this research was provided by:
trond mohn foundation (BFS2018TMT06)
helse vest (912285)
Received: 1 October 2021
Accepted: 23 November 2021
First Online: 8 January 2022
: This retrospective study was conducted under institutional review board approval, with written informed consent from all patients, and approved by the Regional Committee for Medical Research Ethics (REK 2015/2333, 2019/1020 and 2019/1907).
: Written informed consent was obtained from all patients in this study.
: The authors declare that they have no competing interests.