Myelodysplastic SyndromesMyeloproliferative DisordersPrecursor Cell Lymphoblastic Leukemia-LymphomaJanus Kinase 2Primary MyelofibrosisMyelodysplastic-Myeloproliferative DiseasesPolycythemia VeraThrombocythemia, EssentialLeukemia, Myeloid, AcuteAnemia, RefractoryPrecursor B-Cell Lymphoblastic Leukemia-LymphomaLeukemia, Myelomonocytic, ChronicLeukemiaBone Marrow NeoplasmsLeukemia, LymphoidPrecursor T-Cell Lymphoblastic Leukemia-LymphomaReceptors, ThrombopoietinAsparaginaseAnemia, Refractory, with Excess of BlastsBone MarrowPhiladelphia ChromosomeThrombocytosisSyndromeLeukemia, Myeloid, Chronic, Atypical, BCR-ABL NegativeLeukemia-Lymphoma, Adult T-CellLeukemia, MyeloidLeukemia, Myelogenous, Chronic, BCR-ABL PositiveKaryotypingGene Expression Regulation, LeukemicRemission InductionMutationPrognosisLeukemia, Myelomonocytic, JuvenileTranslocation, GeneticBlast CrisisChromosome AberrationsAnemia, SideroblasticBurkitt LymphomaCore Binding Factor Alpha 2 SubunitTreatment OutcomeFusion Proteins, bcr-ablChromosomes, Human, Pair 5Neoplasm, ResidualHematopoietic Stem CellsHematologic Neoplasms6-MercaptopurineOncogene Proteins, FusionAntineoplastic AgentsCytarabineRecurrenceSplenomegalyImmunophenotypingPreleukemiaProto-Oncogene Proteins c-cblMyeloid-Lymphoid Leukemia ProteinLeukemia, B-CellMethotrexateAcute DiseaseGene RearrangementAntineoplastic Combined Chemotherapy ProtocolsAzacitidineBone Marrow DiseasesBone Marrow CellsCytogenetic AnalysisDNA Mutational AnalysisNeoplasms, Second PrimaryAntimetabolites, AntineoplasticMonosomyVincristineLeukemia, Lymphocytic, Chronic, B-CellBone Marrow TransplantationCell Transformation, NeoplasticChromosomes, Human, Pair 7Disease-Free SurvivalHematopoietic Stem Cell TransplantationTransplantation, HomologousCytogeneticsJanus KinasesSurvival AnalysisHematologyProto-Oncogene ProteinsLeukemic InfiltrationClonal EvolutionPancytopeniaSurvival RateChromosomes, Human, Pair 21Leukemia, ExperimentalChromosomes, Human, Pair 12DaunorubicinSTAT5 Transcription FactorIkaros Transcription FactorLeukemia, T-CellMyeloid Progenitor CellsPolymerase Chain ReactionFlow CytometryChromosome DeletionDisease ProgressionThalidomideIn Situ Hybridization, FluorescenceProtein Kinase Inhibitors