Funding for this research was provided by:
Norges Forskningsråd (200510)
Received: 28 October 2019
Accepted: 12 May 2020
First Online: 29 May 2020
Ethics approval and consent to participate
: The experiment was conducted in accordance with Norwegian regulations for the use of animals in research. The experimental protocol was approved by the Norwegian Animal Research Authority (NARA) (Norwegian research permit 4368).
: Not applicable.
: The authors declare that they have no competing interests.