Myelodysplastic SyndromesAnemia, RefractoryAnemia, Refractory, with Excess of BlastsBlood PlateletsPlatelet AggregationSyndromeLeukemia, Myelomonocytic, ChronicLeukemia, Myeloid, AcutePlatelet CountChromosomes, Human, Pair 5Leukemia, MyeloidPlatelet AdhesivenessAzacitidineBone MarrowAnemia, SideroblasticChromosome AberrationsKaryotypingMonosomyMyeloproliferative DisordersThalidomidePreleukemiaPlatelet Membrane GlycoproteinsMyelodysplastic-Myeloproliferative DiseasesAnemia, AplasticPancytopeniaChromosomes, Human, Pair 7Platelet TransfusionCytogenetic AnalysisPrognosisThrombocytopeniaBone Marrow CellsAcute DiseaseLeukemiaPlatelet Factor 4Chromosome DeletionTreatment OutcomeGranulocyte Precursor CellsBone Marrow DiseasesHematopoietic Stem Cell TransplantationNeoplasms, Second PrimaryMegakaryocytesErythrocyte TransfusionIron OverloadTrisomyAntimetabolites, AntineoplasticHematologic AgentsCytogeneticsPlatelet Glycoprotein GPIIb-IIIa ComplexPlatelet Activating FactorPlatelet Function TestsBlood Cell CountBlood TransfusionHematopoietic Stem CellsTransplantation, HomologousAntigens, CD34Survival AnalysisChelation TherapyErythropoietinPlatelet Glycoprotein GPIb-IX ComplexHematopoiesisDown SyndromeRemission InductionCytarabineMetabolic Syndrome XTransplantation ConditioningBlast CrisisFlow CytometryBone Marrow ExaminationMutationThrombocytosisThrombinGranulocyte Colony-Stimulating FactorSurvival RateHematologic DiseasesVidarabineAnemia, MacrocyticIn Situ Hybridization, FluorescenceSweet SyndromeDisease ProgressionAntineoplastic AgentsChromosomes, Human, Pair 8Core Binding Factor Alpha 2 SubunitRetrospective StudiesAnemiaHaploinsufficiencyErythroid Precursor CellsPrimary MyelofibrosisChromosome DisordersKaryotypeHematologic NeoplasmsTranslocation, GeneticThrombopoietinChromosomes, Human, Pair 20Bone Marrow TransplantationAdenosine DiphosphateRisk FactorsIron Chelating AgentsHematinicsDual Specificity Phosphatase 2Leukemia, Myelomonocytic, Acute