Received: 16 May 2021
Accepted: 2 March 2022
First Online: 9 March 2022
: The study was approved by the Regional Committee for Medical Research Ethics, Western Norway (2014/48/REK vest). All methods used were in accordance with relevant guidelines and regulations. All participants signed an informed consent form for participation in the study.
: Not applicable.
: The authors declare that they have no competing interests.