Myeloproliferative DisordersMyelodysplastic SyndromesPolycythemia VeraPrimary MyelofibrosisJanus Kinase 2ThrombocytosisAnemia, Refractory, with Excess of BlastsLeukemia, Myelomonocytic, ChronicThrombocythemia, EssentialAnemia, RefractorySyndromeLeukemia, Myeloid, AcuteBone MarrowLeukemia, MyeloidChromosomes, Human, Pair 5Leukemia, Myeloid, Chronic, Atypical, BCR-ABL NegativeReceptors, ThrombopoietinMyelodysplastic-Myeloproliferative DiseasesLeukemia, Myelogenous, Chronic, BCR-ABL PositiveHematopoietic Stem CellsSplenomegalyKaryotypingAnemia, SideroblasticDown SyndromeLeukemia, Myelomonocytic, JuvenileChromosome AberrationsHematopoiesis, ExtramedullaryLeukemia, Neutrophilic, ChronicBone Marrow CellsMutationAzacitidineLeukemiaGranulocytesMegakaryocytesTranslocation, GeneticLeukemia, Megakaryoblastic, AcuteMonosomyHematopoiesisPreleukemiaChromosomes, Human, Pair 8Blast CrisisChromosomes, Human, Pair 20ThalidomidePrognosisChromosomes, Human, Pair 7Blood Cell CountTreatment OutcomeFusion Proteins, bcr-ablThrombopoietinHematologic DiseasesReceptor, Fibroblast Growth Factor, Type 1PancytopeniaAnemia, AplasticOncogene Proteins, FusionPolycythemiaHematopoietic Stem Cell TransplantationCytogenetic AnalysisAntigens, CD34ErythropoietinAcute DiseaseChromosome DeletionColony-Forming Units AssayBone Marrow DiseasesErythroid Precursor CellsPlatelet CountMyeloid Progenitor CellsIn Situ Hybridization, FluorescenceDNA Mutational AnalysisHepatomegalyHematologic NeoplasmsMutation, MissenseCore Binding Factor Alpha 2 SubunitBudd-Chiari SyndromeLeukocytosisHypereosinophilic SyndromeBone Marrow TransplantationGranulocyte Precursor CellsDisease ProgressionChromosome DisordersCell Transformation, NeoplasticCytogeneticsTrisomyMyeloid CellsBenzamidesAntimetabolites, AntineoplasticFlow CytometryGenes, ablBone Marrow NeoplasmsMyelopoiesisAntineoplastic AgentsPoint MutationNeoplasms, Second PrimaryHydroxyureaRetrospective StudiesIron OverloadErythropoiesisX Chromosome InactivationBipolar DisorderChronic DiseaseBone Marrow Examination