Precursor Cell Lymphoblastic Leukemia-LymphomaLeukemia, LymphoidLeukemia, Lymphocytic, Chronic, B-CellLeukemiaPrecursor B-Cell Lymphoblastic Leukemia-LymphomaAsparaginaseLeukemia, Myeloid, AcutePrecursor T-Cell Lymphoblastic Leukemia-LymphomaLeukemia-Lymphoma, Adult T-CellGene Expression Regulation, LeukemicRemission InductionBurkitt Lymphoma6-MercaptopurinePhiladelphia ChromosomeLeukemia, B-CellMethotrexateCytarabineVincristineBone MarrowLeukemic InfiltrationLeukemia, Myelogenous, Chronic, BCR-ABL PositiveNeoplasm, ResidualLeukemia, T-CellDaunorubicinTranslocation, GeneticKaryotypingPrognosisAntineoplastic Combined Chemotherapy ProtocolsLeukemia, Biphenotypic, AcuteRecurrenceLeukemia, ExperimentalAntineoplastic AgentsMyeloid-Lymphoid Leukemia ProteinFusion Proteins, bcr-ablB-LymphocytesImmunophenotypingAcute DiseaseCore Binding Factor Alpha 2 SubunitTreatment OutcomeRemission, SpontaneousChromosome AberrationsPrednisoneLeukemia, MyeloidGene RearrangementNeprilysinDNA, NeoplasmBlast CrisisDisease-Free SurvivalDrug Resistance, NeoplasmBone Marrow TransplantationOncogene Proteins, FusionImmunoglobulin Heavy ChainsSurvival AnalysisVidarabineNeoplasm ProteinsLeukemia, Monocytic, AcuteLymphomaAntigens, NeoplasmLeukemia Virus, MurineSurvival RateChromosomes, Human, Pair 12Flow CytometryTumor Cells, CulturedIkaros Transcription FactorDexamethasoneTransplantation, HomologousLeukemia, Hairy CellCytogenetic AnalysisCyclophosphamideChromosomes, Human, Pair 9Cyclin-Dependent Kinase Inhibitor p15Antigens, CD19Receptors, Antigen, B-CellLymphocytesT-LymphocytesBase SequenceChromosomes, Human, Pair 11DNA NucleotidylexotransferaseLymphocytes, NullPolymerase Chain ReactionMutationReceptor, Notch1Rosette FormationCranial IrradiationAntibodies, MonoclonalTime FactorsChromosomes, Human, Pair 14CytogeneticsChromosomes, Human, 6-12 and XMolecular Sequence DataCell Line, TumorDrug Administration ScheduleAntimetabolites, AntineoplasticThioguanineBenzamidesChromosomes, Human, Pair 21Antigens, SurfaceZAP-70 Protein-Tyrosine KinaseProto-Oncogene ProteinsApoptosis