Leukemia, Lymphocytic, Chronic, B-CellLeukemia, LymphoidGene Products, vifLeukemiaLeukemia, Myeloid, AcuteLeukemia, B-CellLeukemic InfiltrationAsparaginaseLeukemia, T-CellLeukemia, Myelogenous, Chronic, BCR-ABL PositiveVidarabinePrecursor B-Cell Lymphoblastic Leukemia-LymphomaLeukemia, Biphenotypic, AcuteB-LymphocytesMethotrexateLateral Medullary SyndromeBone 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 FormationKaryotypingAnisocoriaTreatment OutcomeChromosomes, Human, 6-12 and XDNA, NeoplasmPhiladelphia ChromosomeAcute DiseaseRecurrenceCorneal PerforationLymphocytesBlast CrisisLeukemia Virus, MurineChromosome AberrationsTranslocation, GeneticAntigens, NeoplasmTime FactorsCladribineAntigens, CD5Tumor Cells, CulturedAntibodies, MonoclonalT-LymphocytesCyclophosphamideDNA NucleotidylexotransferaseLeukemia, MyeloidFusion Proteins, bcr-ablAntigens, CD38Immunoglobulin Variable RegionFlow CytometryChromosomes, Human, Pair 14MutationNeprilysinPolymerase Chain ReactionDrug Resistance, NeoplasmNeoplasm ProteinsPlant PreparationsPrednisoneBase SequenceRetrospective StudiesBone Marrow TransplantationDaunorubicinAntigens, SurfaceSurvival RateMolecular Sequence DataRisk FactorsLeukemia, Prolymphocytic, T-CellDrug Administration ScheduleCyclin-Dependent Kinase Inhibitor p15Antibodies, Monoclonal, Murine-DerivedImmunophenotypingLeukemia, Monocytic, AcuteDexamethasoneChromosomes, Human, Pair 9Chromosomes, Human, Pair 13Leukemia, Large Granular LymphocyticMethylophilusAntibodies, NeoplasmLeukemia L1210Moloney murine leukemia virusHematologic NeoplasmsApoptosisPhenotypeLymphocytosisClinical Trials as TopicCell Transformation, Neoplastic