Lindemann, Kristina
Gibbs, Emma
Åvall-Lundqvist, Elisabeth
dePont Christensen, Rene
Woie, Kathrine
Kalling, Marten
Auranen, Annika
Grenman, Seija
Hoegberg, Thomas
Rosenberg, Per
Skeie-Jensen, Tone
Hjerpe, Elisabet
Dørum, Anne
Gebski, Val
Kristensen, Gunnar
Article History
Received: 1 July 2016
Revised: 19 November 2016
Accepted: 10 December 2016
First Online: 24 January 2017
Competing interests
: The authors declare no conflict of interest.