LeukemiaLeukemia, Myeloid, AcuteLeukemia, Lymphocytic, Chronic, B-CellLeukemia, LymphoidLeukemia, ExperimentalLeukemia, Myelogenous, Chronic, BCR-ABL PositiveLeukemia Virus, MurinePrecursor Cell Lymphoblastic Leukemia-LymphomaLeukemia, T-CellLeukemia, Monocytic, AcuteMoloney murine leukemia virusLeukemia, Hairy CellLeukemia, B-CellLeukemia L1210Leukemia Virus, FelineLeukemia Virus, BovineDelayed DiagnosisGene Expression Regulation, LeukemicLeukemia, Radiation-InducedMyeloid-Lymphoid Leukemia ProteinSensitivity and SpecificityPrenatal DiagnosisEarly DiagnosisAcute DiseaseLeukemia P388Leukemia, Biphenotypic, AcutePrognosisRetrospective StudiesMolecular Sequence DataFriend murine leukemia virusLeukemia-Lymphoma, Adult T-CellHL-60 CellsCytarabinePolymerase Chain ReactionTreatment OutcomeBone MarrowAntineoplastic AgentsLeukemia, Megakaryoblastic, AcuteRemission InductionTime FactorsDiagnosisBase SequenceFusion Proteins, bcr-ablAKR murine leukemia virusLeukemia, Myeloid, Chronic-PhaseKaryotypingPrecursor B-Cell Lymphoblastic Leukemia-LymphomaMutationCell LineTumor Cells, CulturedLymphomaDaunorubicinLeukemia, Plasma CellRecurrenceNeoplasm ProteinsRisk FactorsFollow-Up StudiesLeukemia, Myeloid, Accelerated PhaseK562 CellsChromosome AberrationsLeukemia, Prolymphocytic, T-CellDiagnostic ErrorsAntineoplastic Combined Chemotherapy ProtocolsHuman T-lymphotropic virus 1ImmunophenotypingPredictive Value of TestsProspective StudiesTumor Markers, BiologicalSurvival AnalysisLeukemia, ProlymphocyticCore Binding Factor Alpha 2 SubunitBiopsyReproducibility of ResultsRNA, MessengerSurvival RateLeukemic InfiltrationFatal OutcomeInfant, NewbornTomography, X-Ray ComputedReverse Transcriptase Polymerase Chain ReactionCytogenetic AnalysisPrecursor T-Cell Lymphoblastic Leukemia-LymphomaApoptosisLeukemia, Myelomonocytic, Juvenilefms-Like Tyrosine Kinase 3Amino Acid SequenceCell Line, TumorPhiladelphia ChromosomeFlow CytometryAsparaginaseCell DifferentiationLeukemia, Basophilic, AcuteCohort StudiesNeoplasm, ResidualCase-Control StudiesDNA, NeoplasmBone Marrow TransplantationAge FactorsLeukemia, Myeloid, Chronic, Atypical, BCR-ABL NegativeGene Rearrangement