Funding for this research was provided by:
Norges Forskningsråd (288164, ES633272)
Bergens Forskningsstiftelse (BFS2017REK05)
Received: 11 March 2020
Accepted: 14 April 2020
First Online: 21 April 2020
Ethics approval and consent to participate
: Informed consent was available from all individuals. Ethical permission for these studies was obtained from our regional ethics committee (REK 2017/2082, 2010/1700, 131.04).
: The authors declare that they have no competing interests.