Solbakken, Monica H.
Tørresen, Ole K.
Nederbragt, Alexander J.
Seppola, Marit
Gregers, Tone F.
Jakobsen, Kjetill S.
Jentoft, Sissel
Article History
Received: 20 January 2016
Accepted: 7 April 2016
First Online: 29 April 2016
Competing interests
: The authors declare no competing financial interests.