Article History
Received: 24 June 2021
Accepted: 12 October 2021
First Online: 30 October 2021
Declarations
:
: This study was conducted in accordance with the Helsinki convention (2013) and ethical approval was obtained from the Regional Ethics Committee (REK) and the Internal Review Board at Oslo University Hospital. Written consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.