Kolnes, Johannes
Hodneland, Erlend
Lange, Audun
Heggestad, Torhild
Article History
Received: 20 January 2023
Accepted: 11 June 2023
First Online: 20 June 2023
Declarations
:
: Prior to initiating our study, we got the approval of the Regional Committees for Medical and Health Research Ethics (REC west), accredited with IRB-number: IRB00001872 REK Vest. Our register number REK 2018/2387. The approval is primarily in accordance with the Norwegian Law on Health Research. The law is itself based on the 1964 Helsinki Declaration and its later amendments. This observational study is based on anonymous group analysis; hence, no written consent was required from participants.
: Not applicable for this publication.
: The authors declare no competing interests.