Article History
Accepted: 1 December 2020
First Online: 2 January 2021
Compliance with Ethical Standards
:
: No potential conflict of interest was reported by the authors.
: The study is performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its amendments. No personal data were collected, and the Norwegian Centre for Research Data does not require preapproval for this kind of data.