Funding for this research was provided by:
Norges Forskningsråd (60123)
Text and Data Mining valid from 2020-04-21
Received: 19 December 2019
Accepted: 7 April 2020
First Online: 21 April 2020
Ethics approval and consent to participate
: The need for ethics approval or consent to participate is not applicable.
: The need for publication is not applicable.
: The authors report no competing interests. The authors alone are responsible for the content and writing of the paper.