[1] Ersta Skondal Univ Coll, Palliat Res Ctr, S-10061 Stockholm, Sweden
[2] Ersta Hosp, Stockholm, Sweden
[3] Karolinska Inst, Dept Clin Sci Intervent & Technol, Stockholm, Sweden
[4] Umea Univ, Dept Radiat Sci, Umea, Sweden
[5] Ostersunds Hosp, FoU unit, Ostersund, Sweden
[6] Karolinska Inst, Dept Oncol Pathol, Stockholm, Sweden
[7] Lund Univ, Dept Clin Sci, Lund, Sweden