CNS disease at diagnosis: a continuing challenge in childhood lymphoblastic leukemia.
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D016543:Central Nervous System Neoplasms / Q000175:diagnosis* / Q000532:radiotherapy; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007945:Leukemia, Lymphoid / Q000175:diagnosis* / Q000532:radiotherapy