Polycythemia VeraMyeloproliferative DisordersPolycythemiaThrombocythemia, EssentialJanus Kinase 2Primary MyelofibrosisThrombocytosisReceptors, ThrombopoietinPipobromanErythroid Precursor CellsLeukemia, Myeloid, Chronic, Atypical, BCR-ABL NegativeHematopoiesis, ExtramedullaryGranulocytesSplenomegalyErythropoietinAloeLeukemia, Myelogenous, Chronic, BCR-ABL PositiveLeukemia, Myelomonocytic, ChronicBone MarrowPhlebotomyMutationErythropoiesisHydroxyureaMegakaryocytesHematopoietic Stem CellsLeukemia, Neutrophilic, ChronicMutation, MissenseBudd-Chiari SyndromeReceptors, ErythropoietinLeukocytosisLeukemia, Myelomonocytic, JuvenileThrombopoietinThrombosisColony-Forming Units AssayPlatelet CountLeukemia, MyeloidAmino Acid SubstitutionMyelodysplastic SyndromesHematopoiesisLeukemia, Megakaryoblastic, AcuteBone Marrow NeoplasmsDown SyndromeFusion Proteins, bcr-ablReceptor, Fibroblast Growth Factor, Type 1GPI-Linked ProteinsHematocritBloodlettingLeukemia, Myeloid, AcuteValineMyelodysplastic-Myeloproliferative DiseasesPoint MutationLeukemiaErythroid CellsJanus KinasesDNA Mutational AnalysisHepatomegalyTranslocation, GeneticChromosomes, Human, XHypereosinophilic SyndromeProtein-Tyrosine KinasesProto-Oncogene ProteinsPhiladelphia ChromosomeBone Marrow CellsChromosomes, Human, 19-20SplenectomyChromosomes, Human, Pair 8Genes, ablClone CellsOncogene Proteins, FusionBlood PlateletsSTAT5 Transcription FactorChromosomes, Human, Pair 20Receptors, CytokineBlast CrisisHomozygoteX Chromosome InactivationIsoantigensPhenotypeBipolar DisorderAntigens, CD34ExonsChronic DiseaseMyelopoiesisChromosomes, Human, Pair 5BenzamidesPhenylalanineSignal TransductionLeukocyte CountAnemia, Refractory, with Excess of BlastsPolymerase Chain Reaction