Birkeland, Nils-Kåre http://orcid.org/0000-0001-6569-1920
Schönheit, Peter
Poghosyan, Lianna
Fiebig, Anne
Klenk, Hans-Peter
Funding for this research was provided by:
Universitetet i Bergen (811293)
Article History
Received: 24 July 2017
Accepted: 5 December 2017
First Online: 16 December 2017
Competing interests
: The authors declare that they have no competing interests.
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