[1] Haukeland Hosp, Dept Oncol & Med Phys, Bergen, Norway
[2] Univ Bergen, Kristian Gerhard Jebsen Brain Tumour Res Ctr, Dept Biomed, Bergen, Norway
[3] Univ Bergen, Mol Imaging Ctr, Dept Biomed, Bergen, Norway
[4] Luxembourg Inst Hlth, Dept Oncol, Luxembourg, Luxembourg
[5] Univ Bergen, Dept Biomed, Bergen, Norway
[6] Univ Portsmouth, Brain Tumour Res Ctr, Inst Biomed & Biomol Sci, Portsmouth, Hants, England
[7] Haukeland Hosp, Dept Pathol, Bergen, Norway
[8] Haukeland Hosp, Dept Radiol, Bergen, Norway
[9] Norwegian Univ Sci & Technol, Dept Phys, Trondheim, Norway
[10] Univ Oslo, Dept Pharmaceut Chem, Oslo, Norway
[11] Oslo Univ Hosp, Norwegian Cyclotron Ctr, Oslo, Norway
[12] Mayo Clin, Div Expt Pathol, Rochester, MN USA
[13] Haukeland Hosp, Dept Neurosurg, Bergen, Norway
[14] Univ Bergen, Dept Clin Med, Bergen, Norway