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-LymphocytesBone MarrowMethotrexateRemission, SpontaneousLymphocytes, NullGene Expression Regulation, LeukemicCytarabineVincristinePrognosis6-MercaptopurineRemission InductionImmunoglobulin Heavy ChainsAntineoplastic AgentsLeukemia, ExperimentalLeukemia-Lymphoma, Adult T-CellLymphomaReceptors, Antigen, B-CellZAP-70 Protein-Tyrosine KinaseBurkitt LymphomaChlorambucilAntineoplastic Combined Chemotherapy ProtocolsLeukemia, Hairy CellKaryotypingRosette FormationAnisocoriaDNA, NeoplasmChromosomes, Human, 6-12 and XPhiladelphia ChromosomeAcute DiseaseTreatment OutcomeDelayed DiagnosisRecurrenceCorneal PerforationLymphocytesChromosome AberrationsTranslocation, GeneticBlast CrisisLeukemia Virus, MurineAntigens, NeoplasmRetrospective StudiesPolymerase Chain ReactionPrenatal DiagnosisAntibodies, MonoclonalCladribineAntigens, CD5Tumor Cells, CulturedTime FactorsEarly DiagnosisCyclophosphamideLeukemia, MyeloidT-LymphocytesDNA NucleotidylexotransferaseSensitivity and SpecificityFusion Proteins, bcr-ablAntigens, CD38MutationFlow CytometrySurvival AnalysisChromosomes, Human, Pair 14NeprilysinImmunoglobulin Variable RegionNeoplasm ProteinsDrug Resistance, NeoplasmBase SequencePrednisoneBone Marrow TransplantationSurvival RateDaunorubicinAntigens, SurfaceMolecular Sequence DataRisk FactorsLeukemia, Prolymphocytic, T-CellImmunophenotypingAntibodies, Monoclonal, Murine-DerivedCyclin-Dependent Kinase Inhibitor p15Leukemia, Monocytic, AcuteDexamethasoneChromosomes, Human, Pair 9Chromosomes, Human, Pair 13DiagnosisDrug Administration ScheduleLeukemia, Large Granular LymphocyticSalvage TherapyAntibodies, NeoplasmHematologic NeoplasmsLeukemia L1210Moloney murine leukemia virus