Boug, Pål http://orcid.org/0000-0003-3809-982X
Cappelen, Ådne
Funding for this research was provided by:
Statistics Norway
Article History
Received: 16 May 2020
Accepted: 8 July 2021
First Online: 20 August 2021
Declarations
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by the authors.