Myelodysplastic SyndromesMyeloproliferative DisordersPolycythemia VeraLeukemia, Myelomonocytic, ChronicJanus Kinase 2Anemia, RefractoryAnemia, Refractory, with Excess of BlastsPrimary MyelofibrosisThrombocytosisThrombocythemia, EssentialLeukemia, Myeloid, AcuteSyndromeLeukemia, Myelogenous, Chronic, BCR-ABL PositiveBone MarrowLeukemia, Myelomonocytic, JuvenileSplenomegalyHematopoiesis, ExtramedullaryReceptors, ThrombopoietinFusion Proteins, bcr-ablLeukemia, MyeloidMyelodysplastic-Myeloproliferative DiseasesChromosomes, Human, Pair 5Hematopoietic Stem CellsBone Marrow CellsOncogene Proteins, FusionAnemia, SideroblasticLeukemiaLeukocytosisGenes, ablMutationBone Marrow Transplantationfms-Like Tyrosine Kinase 3STAT5 Transcription FactorAzacitidineKaryotypingChromosome AberrationsMonosomyPreleukemiaCell Transformation, NeoplasticHematopoiesisThalidomideGene Expression Regulation, LeukemicTranslocation, GeneticChromosomes, Human, Pair 7Myeloid CellsPancytopeniaPrognosisAnemia, AplasticLeukemia, Myeloid, Chronic, Atypical, BCR-ABL NegativeBenzamidesCytogenetic AnalysisAcute DiseaseChromosome DeletionBone Marrow DiseasesTreatment OutcomeBlast CrisisDown SyndromeGranulocyte Precursor CellsPyrimidinesMutation, MissenseFlow CytometryHematopoietic Stem Cell TransplantationCytogeneticsTrisomyPiperazinesAntimetabolites, AntineoplasticRetroviridaeBone Marrow NeoplasmsAntigens, CD34Disease Models, AnimalNeoplasms, Second PrimaryChromosomes, Human, Pair 8ErythropoietinMice, Inbred C57BLMegakaryocytesIron OverloadSignal TransductionProto-Oncogene ProteinsPhenotypeReceptors, ErythropoietinHematologic NeoplasmsChromosomes, Human, Pair 20Erythrocyte TransfusionBone Marrow ExaminationBlood Cell CountHematologic AgentsCell ProliferationTransplantation, HomologousSurvival AnalysisCore Binding Factor Alpha 2 SubunitHematologic DiseasesGranulocytesErythroid Precursor CellsDisease ProgressionThrombocytopeniaCytarabineProtein-Tyrosine KinasesIn Situ Hybridization, FluorescenceMyeloid Progenitor CellsChelation Therapy