Gundersen, Mona Dixon
Goll, Rasmus
Hol, Johanna
Olsen, Trine
Rismo, Renathe
Sørbye, Sveinung W.
Sundnes, Olav
Haraldsen, Guttorm
Florholmen, Jon
Article History
Received: 29 April 2016
Accepted: 27 September 2016
First Online: 17 October 2016
Competing interests
: The authors declare no competing financial interests.