Mauland, Karen Klepsland; Trovik, Jone; Wik, Elisabeth; Ræder, Maria B; Njølstad, Tormund Salvesen; Stefansson, Ingunn Marie; Øyan, Anne Margrete; Kalland, Karl-Henning; Bjørge, Tone; Akslen, Lars A.; Salvesen, Helga Birgitte (Peer reviewed; Journal article, 2011)