Leukemia, Lymphocytic, Chronic, B-CellLeukemia, LymphoidPrecursor Cell Lymphoblastic Leukemia-LymphomaLeukemiaLeukemia, Myeloid, AcuteLeukemia, B-CellLeukemic InfiltrationAsparaginaseLeukemia, T-CellLeukemia, Myelogenous, Chronic, BCR-ABL PositiveVidarabinePrecursor B-Cell Lymphoblastic Leukemia-LymphomaLeukemia, Biphenotypic, AcuteB-LymphocytesMethotrexateRemission, SpontaneousBone MarrowLymphocytes, NullGene Expression Regulation, LeukemicCytarabineVincristine6-MercaptopurineRemission InductionImmunoglobulin Heavy ChainsLeukemia, ExperimentalAntineoplastic AgentsLeukemia-Lymphoma, Adult T-CellPrognosisReceptors, Antigen, B-CellLymphomaZAP-70 Protein-Tyrosine KinaseBurkitt LymphomaChlorambucilAntineoplastic Combined Chemotherapy ProtocolsLeukemia, Hairy CellRosette FormationKaryotypingAnisocoriaChromosomes, Human, 6-12 and XDNA, NeoplasmTreatment OutcomePhiladelphia ChromosomeAcute DiseaseRecurrenceCorneal PerforationLymphocytesBlast CrisisLeukemia Virus, MurineChromosome AberrationsTranslocation, GeneticAntigens, NeoplasmCladribineAntigens, CD5Tumor Cells, CulturedAntibodies, MonoclonalTime FactorsCyclophosphamideT-LymphocytesDNA NucleotidylexotransferaseLeukemia, MyeloidFusion Proteins, bcr-ablAntigens, CD38Immunoglobulin Variable RegionFlow CytometryChromosomes, Human, Pair 14NeprilysinDrug Resistance, NeoplasmMutationPolymerase Chain ReactionNeoplasm ProteinsSurvival AnalysisPrednisoneRetrospective StudiesBone Marrow TransplantationBase SequenceDaunorubicinAntigens, SurfaceSurvival RateMolecular Sequence DataRisk FactorsLeukemia, Prolymphocytic, T-CellCyclin-Dependent Kinase Inhibitor p15Drug Administration ScheduleAntibodies, Monoclonal, Murine-DerivedLeukemia, Monocytic, AcuteImmunophenotypingDexamethasoneChromosomes, Human, Pair 9Chromosomes, Human, Pair 13Leukemia, Large Granular LymphocyticSalvage TherapyAntibodies, NeoplasmLeukemia L1210Moloney murine leukemia virusHematologic NeoplasmsApoptosisLymphocytosisCell Transformation, NeoplasticClinical Trials as TopicProto-Oncogene Proteins