Mikalsen, Ragni Fjellgaard http://orcid.org/0000-0003-0979-2369
Hagen, Bjarne Christian http://orcid.org/0000-0002-3119-9900
Steen-Hansen, Anne http://orcid.org/0000-0002-4831-7563
Krause, Ulrich
Frette, Vidar http://orcid.org/0000-0002-4805-9007
Funding for this research was provided by:
Norges Forskningsråd (238329)
Article History
Received: 19 July 2018
Accepted: 6 November 2018
First Online: 16 November 2018