Radiation therapy in the treatment of childhood astrocytic gliomas.

Adolescent Animals Brain Neoplasms/radiotherapy Brain Stem Cerebellar Neoplasms/radiotherapy Cerebral Ventricle Neoplasms/radiotherapy Child Child, Preschool Evaluation Studies as Topic Female Follow-Up Studies Glioma/radiotherapy Humans Infant Male Neoplasm Recurrence, Local Optic Lobe, Nonmammalian Radiotherapy Dosage Radiotherapy, High-Energy/adverse effects