Received: 23 August 2021
Accepted: 2 February 2022
First Online: 19 February 2022
: All participants were informed about the project, both orally and in writing, and gave written consent to participate. The study was approved by the Norwegian Regional Committees for Medical and Health Research Ethics (approval reference 2019/809) and the Norwegian Centre for Research Data (approval reference 237074). All methods were performed in accordance with the relevant guidelines and regulations.
: Not Applicable.
: The author has no competing interests.