title: The impact of isolated central nervous system relapse following initial complete remission in childhood acute lymphocytic leukemia.
mesh_terms: D002493:Central Nervous System Diseases / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007945:Leukemia, Lymphoid / Q000175:diagnosis*; D009423:Nervous System Neoplasms / Q000556:secondary*