Myelodysplastic SyndromesAnemia, RefractoryAnemia, Refractory, with Excess of BlastsSyndromeLeukemia, Myelomonocytic, ChronicLeukemia, Myeloid, AcuteChromosomes, Human, Pair 5Leukemia, MyeloidStem CellsAzacitidineBone MarrowAnemia, SideroblasticKaryotypingChromosome AberrationsMonosomyThalidomideMyeloproliferative DisordersPreleukemiaHematopoietic Stem CellsMyelodysplastic-Myeloproliferative DiseasesAnemia, AplasticPancytopeniaChromosomes, Human, Pair 7Hematopoietic Stem Cell TransplantationBone Marrow CellsCytogenetic AnalysisPrognosisLeukemiaAcute DiseaseChromosome DeletionTreatment OutcomeGranulocyte Precursor CellsNeoplasms, Second PrimaryBone Marrow DiseasesIron OverloadTrisomyStem Cell TransplantationAntimetabolites, AntineoplasticTransplantation, HomologousCytogeneticsErythrocyte TransfusionAntigens, CD34Hematologic AgentsSurvival AnalysisHematopoiesisChelation TherapyErythropoietinTransplantation ConditioningBlood TransfusionRemission InductionDown SyndromeCytarabineMetabolic Syndrome XBlast CrisisMutationGranulocyte Colony-Stimulating FactorBlood Cell CountThrombocytopeniaBone Marrow ExaminationSurvival RateVidarabineIn Situ Hybridization, FluorescenceHematologic DiseasesAnemia, MacrocyticPlant StemsSweet SyndromeNeoplastic Stem CellsDisease ProgressionFlow CytometryAntineoplastic AgentsChromosomes, Human, Pair 8Core Binding Factor Alpha 2 SubunitHematologic NeoplasmsRetrospective StudiesAnemiaKaryotypeErythroid Precursor CellsHaploinsufficiencyChromosome DisordersBone Marrow TransplantationTranslocation, GeneticPrimary MyelofibrosisChromosomes, Human, Pair 20ImmunophenotypingIron Chelating AgentsLeukemia, Myelomonocytic, AcuteErythroid CellsHematinicsBusulfanErythroblastsHemoglobinuria, ParoxysmalDNA Modification MethylasesRisk FactorsAntilymphocyte SerumRecurrenceAdult Stem CellsFatal OutcomeMyeloid Progenitor CellsErythropoiesisIsochromosomes