Funding for this research was provided by:
The Research Council of Norway (227386/E40)
Received: 23 October 2019
Accepted: 17 December 2019
First Online: 10 January 2020
Ethics approval and consent to participate
: The animal experiment was performed in compliance with ethical guidelines and approved by the Norwegian Animal Research Authority (ID 5826) with reference to the Norwegian regulation on animal experimentation (FOR-2015-06-18-761).
: The authors declare that they have no competing interests.