[1] Ankara City Hosp, Minist Hlth, Dept Pediat, Div Pediat Hematol Oncol, Ankara, Turkiye
[2] Ankara City Hosp, Minist Hlth, Dept Pathol, Ankara, Turkiye
[3] Ankara Univ, Dept Pediat, Fac Med, Div Pediat Hematol Oncol, Ankara, Turkiye
[4] Ankara City Hosp, Minist Hlth, Dept Neurosurg, Ankara, Turkiye