Leukemia, Lymphocytic, Chronic, B-CellLeukemia, LymphoidPrecursor Cell Lymphoblastic Leukemia-LymphomaLeukemiaLeukemia, Myeloid, AcuteLeukemia, B-CellLeukemia, T-CellLeukemia, Myelogenous, Chronic, BCR-ABL PositiveLeukemic InfiltrationPrecursor B-Cell Lymphoblastic Leukemia-LymphomaLeukemia, Biphenotypic, AcuteGene Expression Regulation, LeukemicAsparaginaseLeukemia, ExperimentalVidarabineBone MarrowB-LymphocytesMethotrexateRemission, SpontaneousCytarabineLymphocytes, NullLeukemia, MyeloidImmunoglobulin Heavy ChainsAntineoplastic AgentsVincristine6-MercaptopurineLymphomaRemission InductionBurkitt LymphomaLeukemia-Lymphoma, Adult T-CellReceptors, Antigen, B-CellTranslocation, GeneticLeukemia, Hairy CellZAP-70 Protein-Tyrosine KinaseDNA, NeoplasmKaryotypingPrognosisRosette FormationChlorambucilAntineoplastic Combined Chemotherapy ProtocolsChromosomes, Human, 6-12 and XPhiladelphia ChromosomeBlast CrisisAcute DiseaseLeukemia Virus, MurineAnisocoriaFusion Proteins, bcr-ablChromosome AberrationsMyeloid-Lymphoid Leukemia ProteinTumor Cells, CulturedLymphocytesAntigens, NeoplasmCorneal PerforationAntigens, CD5DNA NucleotidylexotransferaseT-LymphocytesNeoplasm ProteinsAntibodies, MonoclonalRecurrenceCladribineFlow CytometryAntigens, CD38Leukemia, Monocytic, AcuteChromosomes, Human, Pair 14CyclophosphamideDrug Resistance, NeoplasmLeukemia, Radiation-InducedBase SequenceAntigens, SurfaceImmunoglobulin Variable RegionNeprilysinMutationLeukemia, ProlymphocyticImmunophenotypingLeukemia, Prolymphocytic, T-CellDaunorubicinBone Marrow TransplantationMolecular Sequence DataChromosomes, Human, Pair 11Treatment OutcomeCell Transformation, NeoplasticPrednisoneProto-Oncogene ProteinsCyclin-Dependent Kinase Inhibitor p15Polymerase Chain ReactionChromosomes, Human, Pair 9Survival AnalysisLeukemia L1210Leukemia, Large Granular LymphocyticChromosomes, Human, Pair 13ApoptosisHematologic NeoplasmsBlotting, SouthernMoloney murine leukemia virusAntibodies, NeoplasmAntibodies, Monoclonal, Murine-DerivedSalvage TherapySurvival RateCell LineDrug Administration Schedule