Funding for this research was provided by:
Norges Forskningsråd (NFR255406)
Text and Data Mining valid from 2019-05-07
Received: 4 March 2019
Accepted: 2 May 2019
First Online: 7 May 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: This article does not contain clinical studies or patient data. This article does not contain any studies with human participants performed by any of the authors. All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. All procedures performed in studies involving animals were in accordance with the ethical standards of the institution at which the studies were conducted.