Lien, Lars
Bolstad, Ingeborg
Bramness, Jørgen G.
Article History
Received: 22 February 2021
Accepted: 28 April 2021
First Online: 11 May 2021
Declarations
:
: Ethics approval was obtained from the Norwegian regional ethics committee: 2017/1314 REK sør-øst B. All participants signed the informed consent form including information about the study.
: Not applicable.
: The authors declare that they have no competing interests.