Precursor Cell Lymphoblastic Leukemia-LymphomaLeukemia, LymphoidLeukemiaAsparaginaseLeukemia, Lymphocytic, Chronic, B-CellPrecursor B-Cell Lymphoblastic Leukemia-LymphomaLeukemia, Myeloid, AcuteRemission InductionGene Expression Regulation, Leukemic6-MercaptopurinePrecursor T-Cell Lymphoblastic Leukemia-LymphomaLeukemia-Lymphoma, Adult T-CellMethotrexateNeoplasm, ResidualBurkitt LymphomaCore Binding Factor Alpha 2 SubunitLeukemia, B-CellVincristineCytarabineDaunorubicinKaryotypingPhiladelphia ChromosomeRecurrenceLeukemic InfiltrationBone MarrowTranslocation, GeneticPrognosisAntineoplastic Combined Chemotherapy ProtocolsLeukemia, Myelogenous, Chronic, BCR-ABL PositiveCranial IrradiationMyeloid-Lymphoid Leukemia ProteinChromosomes, Human, Pair 12ImmunophenotypingLeukemia, T-CellLeukemia, ExperimentalPrednisoneOncogene Proteins, FusionGene RearrangementAntineoplastic AgentsTreatment OutcomeChromosome AberrationsLeukemia, Biphenotypic, AcuteIkaros Transcription FactorDisease-Free SurvivalAcute DiseaseBlast CrisisChromosomes, Human, Pair 21Drug Resistance, NeoplasmDNA, NeoplasmFusion Proteins, bcr-ablB-LymphocytesNeoplasm ProteinsNeprilysinSurvival AnalysisLeukemia Virus, MurineSurvivorsLeukemia, Monocytic, AcuteSurvival RateLeukemia, MyeloidBone Marrow TransplantationDexamethasoneAntimetabolites, AntineoplasticCyclin-Dependent Kinase Inhibitor p15Remission, SpontaneousRisk FactorsTumor Cells, CulturedImmunoglobulin Heavy ChainsPloidiesFlow CytometryChromosomes, Human, Pair 9Antigens, NeoplasmAntigens, CD19PrednisoloneReduced Folate Carrier ProteinProto-Oncogene Proteins c-etsChromosomes, Human, Pair 11Leukemia, Hairy CellTime FactorsCase-Control StudiesCentral Nervous System NeoplasmsPolymerase Chain ReactionThioguanineTransplantation, HomologousInfant, NewbornInjections, SpinalCombined Modality TherapyLymphomaLymphocytesBase SequenceVidarabineNeoplastic Stem CellsChromosome DisordersLeukocyte CountMutationCytogenetic AnalysisNeoplasms, Second PrimaryHLA-DRB4 ChainsT-LymphocytesTeniposidePolyglutamic Acid