Paulsen Ørnulf, Aass Nina, Klepstad Pål, Kaasa Stein
Telemark Hospital Trust, Skien; Norwegian University of Science and Technology, Trondheim, Norway
Oslo University Hospital; University of Oslo, Oslo, Norway.
J Clin Oncol. 2015 May 1;33(13):1513. doi: 10.1200/JCO.2014.60.6475. Epub 2015 Mar 9.