Precursor Cell Lymphoblastic Leukemia-LymphomaLeukemia, Biphenotypic, AcuteLeukemiaLeukemia, Myeloid, AcuteAcute DiseaseLeukemia, Basophilic, AcuteLeukemia, LymphoidBasophilsLeukemia, ExperimentalLeukemia, Monocytic, AcuteAsparaginaseLeukemia, Lymphocytic, Chronic, B-CellMyeloid-Lymphoid Leukemia ProteinCytarabineGene Expression Regulation, LeukemicPrecursor B-Cell Lymphoblastic Leukemia-LymphomaRemission InductionLeukemia, Myelogenous, Chronic, BCR-ABL PositiveBone MarrowLeukemia, MyeloidCore Binding Factor Alpha 2 SubunitReceptors, IgE6-MercaptopurineKaryotypingDaunorubicinNeoplasm, ResidualRecurrenceLeukemia, B-CellLeukemia, T-CellLeukemia Virus, MurineMethotrexatePrognosisTranslocation, GeneticLeukemic InfiltrationImmunophenotypingLeukemia-Lymphoma, Adult T-CellCranial IrradiationOncogene Proteins, FusionAntineoplastic Combined Chemotherapy ProtocolsChromosome AberrationsTumor Cells, CulturedInfant, NewbornVincristineLeukemia, Myelomonocytic, AcuteTreatment OutcomeLeukemia, Radiation-InducedSurvivorsAntineoplastic AgentsBone Marrow TransplantationGene RearrangementBlast CrisisChromosomes, Human, Pair 21Chromosomes, Human, Pair 11Burkitt LymphomaChromosomes, Human, Pair 12Risk FactorsNeoplasm ProteinsMast CellsImmunoglobulin EChromosome DisordersCase-Control StudiesDisease-Free SurvivalMoloney murine leukemia virusPrednisoneHistamine ReleaseIdarubicinLeukemia, Megakaryoblastic, AcuteTime FactorsLeukemia, Hairy CellDrug Resistance, NeoplasmLeukemia L1210Neoplasms, Second PrimaryHL-60 CellsTransplantation, HomologousPrecursor T-Cell Lymphoblastic Leukemia-LymphomaRetrospective StudiesLeukemia Virus, BovineLeukemia Virus, FelineDNA, NeoplasmFollow-Up StudiesCell LineMolecular Sequence DataBase SequenceCytogenetic AnalysisFlow CytometryProto-OncogenesThioguanineSurvival RatePreleukemiaSurvival AnalysisCombined Modality TherapyAntimetabolites, Antineoplasticfms-Like Tyrosine Kinase 3Neoplastic Stem CellsHematopoietic Stem Cell TransplantationLeukemia, Promyelocytic, AcuteReceptors, FcChromosome BandingAntigens, CDDinitrophenols