Management of childhood leukemia.
D000293:Adolescent; D001921:Brain / Q000528:radiation effects; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007945:Leukemia, Lymphoid / Q000628:therapy*; D008727:Methotrexate / Q000627:therapeutic use; D009364:Neoplasm Recurrence, Local
D008727:Methotrexate