Myeloproliferative DisordersPolycythemia VeraJanus Kinase 2Primary MyelofibrosisThrombocythemia, EssentialThrombocytosisReceptors, ThrombopoietinMyelodysplastic-Myeloproliferative DiseasesLeukemia, Myelomonocytic, ChronicSplenomegalyLeukemia, Myelomonocytic, JuvenileLeukemia, Myeloid, Chronic, Atypical, BCR-ABL NegativeBone Marrow NeoplasmsHematopoiesis, ExtramedullaryLeukemia, Myelogenous, Chronic, BCR-ABL PositiveLeukemia, Neutrophilic, ChronicMyelodysplastic SyndromesBone MarrowHematopoietic Stem CellsFusion Proteins, bcr-ablMutationSarcoma Viruses, MurineLeukemia, MyeloidHypereosinophilic SyndromeMegakaryocytesReceptor, Fibroblast Growth Factor, Type 1LeukocytosisGenes, ablMoloney murine sarcoma virusLeukemia, Myeloid, AcuteSTAT5 Transcription FactorOncogene Proteins, FusionAnemia, RefractoryMyelopoiesisLeukemia, Megakaryoblastic, AcutePhiladelphia ChromosomeGranulocytesThrombopoietinBlast CrisisProto-Oncogene Proteins c-cblPolycythemiaMutation, MissenseHematopoiesisDown SyndromeTranslocation, GeneticBudd-Chiari SyndromeJanus KinasesBone Marrow CellsHematologic NeoplasmsHydroxyureaHepatomegalyChromosomes, Human, Pair 8Cell Transformation, NeoplasticProto-Oncogene Proteins c-bcrChromosomes, Human, Pair 20MastocytosisBenzamidesMyeloid Progenitor CellsLeukemiaColony-Forming Units AssayBone Marrow TransplantationMyeloid CellsAnemia, SideroblasticAmino Acid SubstitutionPyrimidinesDNA Mutational AnalysisGene Expression Regulation, LeukemicChromosomes, Human, Pair 5Bone Marrow DiseasesGranulocyte-Macrophage Progenitor CellsPlatelet CountGene Knock-In TechniquesMastocytosis, SystemicProto-Oncogene ProteinsRetroviridaePoint MutationValinePiperazinesMegakaryocyte Progenitor Cellsfms-Like Tyrosine Kinase 3Protein Kinase InhibitorsX Chromosome InactivationSignal TransductionErythroid Precursor CellsCore Binding Factor Alpha 2 SubunitAnemia, Refractory, with Excess of BlastsCell ProliferationChromosomes, Human, 19-20KaryotypingSpleenChronic DiseaseChromosomes, Human, Pair 13Protein-Tyrosine KinasesAntigens, CD34Mice, Inbred C57BLBlood Cell CountGATA1 Transcription FactorSplenectomySTAT Transcription FactorsHematologic Diseases