Myelodysplastic SyndromesMyeloproliferative DisordersPrecursor Cell Lymphoblastic Leukemia-LymphomaLeukemiaLeukemia, Myeloid, AcuteAcute DiseaseJanus Kinase 2Primary MyelofibrosisMyelodysplastic-Myeloproliferative DiseasesPolycythemia VeraThrombocythemia, EssentialLeukemia, LymphoidAnemia, RefractoryPrecursor B-Cell Lymphoblastic Leukemia-LymphomaAsparaginaseLeukemia, Myelomonocytic, ChronicBone MarrowPrecursor T-Cell Lymphoblastic Leukemia-LymphomaBone Marrow NeoplasmsAnemia, Refractory, with Excess of BlastsLeukemia, MyeloidReceptors, ThrombopoietinCytarabineRemission InductionLeukemia, Myelogenous, Chronic, BCR-ABL PositivePhiladelphia ChromosomeLeukemia, Biphenotypic, AcuteTreatment OutcomeRecurrenceGene Expression Regulation, LeukemicLeukemia-Lymphoma, Adult T-CellThrombocytosisKaryotypingBlast CrisisLeukemia, Myeloid, Chronic, Atypical, BCR-ABL NegativeArabinonucleosidesSyndromePrognosisAntineoplastic Combined Chemotherapy ProtocolsMutationAntineoplastic AgentsTranslocation, GeneticLeukemia, Lymphocytic, Chronic, B-CellLeukemia, Myelomonocytic, JuvenileIdarubicinChromosome AberrationsCore Binding Factor Alpha 2 SubunitFusion Proteins, bcr-ablMyeloid-Lymphoid Leukemia ProteinBurkitt LymphomaAnemia, SideroblasticLeukemia, ExperimentalNeoplasm, ResidualLeukemia, B-CellHematopoietic Stem CellsChromosomes, Human, Pair 5ImmunophenotypingPreleukemiaHematologic Neoplasms6-MercaptopurineHematopoietic Stem Cell TransplantationOncogene Proteins, FusionLeukemia, Monocytic, AcuteTransplantation, HomologousMitoxantroneGene RearrangementBone Marrow TransplantationSalvage TherapyMethotrexateLeukemia, T-CellSplenomegalyCytogenetic AnalysisSurvival RateVincristineProto-Oncogene Proteins c-cblAzacitidineBone Marrow CellsDrug Resistance, NeoplasmDaunorubicinCell Transformation, NeoplasticDisease-Free SurvivalLeukemic InfiltrationNeoplasms, Second PrimaryCytogeneticsAntimetabolites, AntineoplasticBone Marrow DiseasesSurvival AnalysisDrug Administration ScheduleDNA Mutational AnalysisChromosomes, Human, Pair 7MonosomyProto-Oncogene ProteinsFlow CytometryPancytopeniaChromosomes, Human, Pair 21Neoplasm ProteinsPolymerase Chain ReactionLeukemia, Radiation-InducedJanus KinasesGraft vs Host Disease