[1] Univ Hosp Motol, Dept Pediat Hemathol & Oncol, Prague, Czech Republic
[2] Univ Hosp Motol, Dept Pediat Hematol & Oncol, Prague, Czech Republic
[3] Univ Hosp Motol, Dept Neurosurg, Prague, Czech Republic
[4] Univ Hosp Motol, Dept Pathol, Prague, Czech Republic
[5] Univ Hosp Motol, Dept Radiol, Prague, Czech Republic