[1] Univ Oslo, Inst Clin Med, Oslo, Norway
[2] Akershus Univ Hosp, Dept Hematol, Sykehusveien 25, N-1478 Lorenskog, Norway
[3] Stavanger Univ Hosp, Dept Oncol, Stavanger, Norway
[4] Haukeland Hosp, Dept Oncol, Bergen, Norway
[5] Oslo Univ Hosp, Dept Radiol, Oslo, Norway
[6] Baerum Hosp, Vestre Viken Hosp Trust, Dept Med, Drammen, Norway
[7] Oslo Univ Hosp, Dept Hematol, Oslo, Norway
[8] St Olavs Univ Hosp, Dept Hematol, Trondheim, Norway
[9] Vestre Viken Hosp Trust, Drammen Hosp, Dept Oncol, Drammen, Norway
[10] Akershus Univ Hosp, Dept Oncol, Lorenskog, Norway
[11] Oslo Univ Hosp, Dept Oncol, Oslo, Norway
[12] Volda Hosp, More & Romsdal Hosp Trust Volda, Dept Med, Alesund, Norway
[13] Ostfold Hosp, Clin Internal Med, Gralum, Norway