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-LymphocytesMethotrexateBone MarrowRemission, SpontaneousLymphocytes, NullGene Expression Regulation, LeukemicCytarabineVincristine6-MercaptopurineImmunoglobulin Heavy ChainsLeukemia, ExperimentalLeukemia-Lymphoma, Adult T-CellRemission InductionAntineoplastic AgentsReceptors, Antigen, B-CellZAP-70 Protein-Tyrosine KinaseBurkitt LymphomaLymphomaChlorambucilLeukemia, Hairy CellRosette FormationPrognosisAntineoplastic Combined Chemotherapy ProtocolsChromosomes, Human, 6-12 and XAnisocoriaPhiladelphia ChromosomeKaryotypingDNA, NeoplasmCorneal PerforationLeukemia Virus, MurineLymphocytesBlast CrisisCladribineChromosome AberrationsTranslocation, GeneticAntigens, NeoplasmTumor Cells, CulturedAntigens, CD5DNA NucleotidylexotransferaseT-LymphocytesAntigens, CD38Fusion Proteins, bcr-ablCyclophosphamideRecurrenceLeukemia, MyeloidAntibodies, MonoclonalAcute DiseaseImmunoglobulin Variable RegionDrug Resistance, NeoplasmChromosomes, Human, Pair 14NeprilysinFlow CytometryNeoplasm ProteinsDaunorubicinAntigens, SurfaceBone Marrow TransplantationPrednisoneTreatment OutcomeMutationBase SequenceLeukemia, Prolymphocytic, T-CellSurvival AnalysisCyclin-Dependent Kinase Inhibitor p15Leukemia, Monocytic, AcuteAntibodies, Monoclonal, Murine-DerivedMolecular Sequence DataLeukemia, Large Granular LymphocyticChromosomes, Human, Pair 9DexamethasoneImmunophenotypingChromosomes, Human, Pair 13Leukemia L1210Polymerase Chain ReactionSalvage TherapyDrug Administration ScheduleMoloney murine leukemia virusAntibodies, NeoplasmSurvival RateApoptosisTime FactorsHematologic NeoplasmsCell Transformation, NeoplasticGenes, Immunoglobulin Heavy ChainLeukemia, ProlymphocyticProto-Oncogene ProteinsLymphocytosisLeukemia P388