Precursor Cell Lymphoblastic Leukemia-LymphomaLeukemia, LymphoidAsparaginasePrecursor B-Cell Lymphoblastic Leukemia-LymphomaLeukemia, Lymphocytic, Chronic, B-CellLeukemiaLeukemia, Myeloid, AcutePrecursor T-Cell Lymphoblastic Leukemia-Lymphoma6-MercaptopurineGene Expression Regulation, LeukemicMethotrexateRemission InductionLeukemia-Lymphoma, Adult T-CellNeoplasm, ResidualBurkitt LymphomaCore Binding Factor Alpha 2 SubunitLeukemia, B-CellVincristineLeukemic InfiltrationTranslocation, GeneticRecurrenceBone MarrowKaryotypingCranial IrradiationPhiladelphia ChromosomePrognosisCytarabineChromosomes, Human, Pair 12Antineoplastic Combined Chemotherapy ProtocolsDaunorubicinImmunophenotypingGene RearrangementOncogene Proteins, FusionMyeloid-Lymphoid Leukemia ProteinPrednisoneLeukemia, T-CellIkaros Transcription FactorLeukemia, Myelogenous, Chronic, BCR-ABL PositiveAntineoplastic AgentsTreatment OutcomeBlast CrisisLeukemia, Biphenotypic, AcuteChromosome AberrationsChromosomes, Human, Pair 21Disease-Free SurvivalDrug Resistance, NeoplasmB-LymphocytesLeukemia, ExperimentalDNA, NeoplasmNeprilysinSurvivorsNeoplasm ProteinsFusion Proteins, bcr-ablDexamethasonePloidiesImmunoglobulin Heavy ChainsAntimetabolites, AntineoplasticChromosomes, Human, Pair 9Survival AnalysisBone Marrow TransplantationPrednisoloneCyclin-Dependent Kinase Inhibitor p15Risk FactorsSurvival RateReduced Folate Carrier ProteinAntigens, CD19Proto-Oncogene Proteins c-etsAntigens, NeoplasmAcute DiseaseTumor Cells, CulturedChromosomes, Human, Pair 11Flow CytometryInfant, NewbornRemission, SpontaneousPolymerase Chain ReactionInjections, SpinalCase-Control StudiesTime FactorsLymphocytesChromosome DisordersHLA-DRB4 ChainsVidarabineLymphomaNeoplastic Stem CellsTeniposideBase SequenceLeukemia, MyeloidPolyglutamic AcidLeukemia Virus, MurineCentral Nervous System NeoplasmsTransplantation, HomologousCombined Modality TherapyNeoplasms, Second PrimaryT-LymphocytesIn Situ Hybridization, FluorescenceProto-Oncogene ProteinsMutationMolecular Sequence DataThioguanineLeukemia, Monocytic, Acute