Aandstad, Anders http://orcid.org/0000-0002-5867-0395
Article History
Received: 25 March 2021
Accepted: 5 August 2021
First Online: 14 August 2021
Declarations
:
: The author has no conflict of interest related to this work.
: The study was approved by the Research Group at the Norwegian Defense University College, while the Norwegian Centre for Research Data and the Regional Committee for Medical and Health Research Ethics considered the study to be exempted from notification (due to use of anonymous register data only).
: Not applicable.
: Not applicable.