Bjune, Jan-Inge http://orcid.org/0000-0001-8255-4282
Haugen, Christine
Gudbrandsen, Oddrun
Nordbø, Ole P.
Nielsen, Hans J.
Våge, Villy
Njølstad, Pål R.
Sagen, Jørn V.
Dankel, Simon N.
Mellgren, Gunnar
Article History
Received: 13 July 2018
Revised: 2 October 2018
Accepted: 28 October 2018
First Online: 11 December 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.