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-MercaptopurineImmunoglobulin Heavy ChainsLeukemia, ExperimentalRemission InductionLeukemia-Lymphoma, Adult T-CellAntineoplastic AgentsReceptors, Antigen, B-CellZAP-70 Protein-Tyrosine KinaseBurkitt LymphomaLymphomaPrognosisChlorambucilLeukemia, Hairy CellRosette FormationAntineoplastic Combined Chemotherapy ProtocolsChromosomes, Human, 6-12 and XAnisocoriaPhiladelphia ChromosomeKaryotypingDNA, NeoplasmCorneal PerforationLymphocytesLeukemia Virus, MurineBlast CrisisRecurrenceAcute DiseaseCladribineChromosome AberrationsTranslocation, GeneticTreatment OutcomeAntigens, NeoplasmTumor Cells, CulturedAntigens, CD5DNA NucleotidylexotransferaseT-LymphocytesAntigens, CD38CyclophosphamideAntibodies, MonoclonalFusion Proteins, bcr-ablLeukemia, MyeloidImmunoglobulin Variable RegionDrug Resistance, NeoplasmChromosomes, Human, Pair 14NeprilysinFlow CytometryNeoplasm ProteinsDaunorubicinBone Marrow TransplantationPrednisoneAntigens, SurfaceMutationTime FactorsBase SequenceSurvival AnalysisLeukemia, Prolymphocytic, T-CellCyclin-Dependent Kinase Inhibitor p15Molecular Sequence DataAntibodies, Monoclonal, Murine-DerivedLeukemia, Monocytic, AcuteDrug Administration ScheduleDexamethasonePolymerase Chain ReactionChromosomes, Human, Pair 9Leukemia, Large Granular LymphocyticSurvival RateImmunophenotypingChromosomes, Human, Pair 13Salvage TherapyLeukemia L1210Antibodies, NeoplasmMoloney murine leukemia virusApoptosisHematologic NeoplasmsLymphocytosisCell Transformation, NeoplasticGenes, Immunoglobulin Heavy ChainLeukemia, ProlymphocyticProto-Oncogene ProteinsClinical Trials as Topic