Kjelvik, Grete
Saltvedt, Ingvild
White, Linda R
Stenumgård, Pål
Sletvold, Olav
Engedal, Knut
Skåtun, Kristina
Lyngvær, Ann Kristin
Steffenach, Hill Aina
Håberg, Asta K
Article History
Received: 3 November 2013
Accepted: 18 August 2014
First Online: 26 August 2014