[1] Masaryk Univ, Cent European Inst Technol CEITEC, Brno 62500, Czech Republic
[2] Masaryk Mem Canc Inst, Dept Comprehens Canc Care, Brno 65653, Czech Republic
[3] Univ Hosp Brno, Dept Neurosurg, Brno 62500, Czech Republic
[4] Masaryk Univ, Fac Med, Brno 62500, Czech Republic
[5] Masaryk Univ, Fac Med, Masaryk Mem Canc Inst, Dept Radiat Oncol, Brno 65653, Czech Republic