[1] Charles Univ Prague, Dept Pediat Hematol Oncol, Fac Med 2, Prague, Czech Republic
[2] Univ Hosp Motol, Prague, Czech Republic
[3] Charles Univ Prague, Clin Imaging Methods, Fac Med 2, Prague, Czech Republic
[4] Charles Univ Prague, Dept Pediat Surg, Fac Med 2, Prague, Czech Republic
[5] Charles Univ Prague, Dept Radiotherapy & Clin Oncol, Fac Med 2, Prague, Czech Republic
[6] Charles Univ Prague, Inst Pathol & Mol Med, Fac Med 2, Prague, Czech Republic