Myelodysplastic SyndromesAnemia, RefractoryAnemia, Refractory, with Excess of BlastsSyndromeLeukemia, Myelomonocytic, ChronicLeukemia, Myeloid, AcuteChromosomes, Human, Pair 5Leukemia, MyeloidAzacitidineAnemia, SideroblasticBone MarrowChromosome AberrationsKaryotypingMonosomyThalidomidePreleukemiaMyeloproliferative DisordersMyelodysplastic-Myeloproliferative DiseasesChromosomes, Human, Pair 7PancytopeniaAnemia, AplasticCytogenetic AnalysisPrognosisChromosome DeletionBone Marrow CellsLeukemiaAcute DiseaseGranulocyte Precursor CellsTreatment OutcomeNeoplasms, Second PrimaryBone Marrow DiseasesTrisomyHematopoietic Stem Cell TransplantationIron OverloadCytogeneticsAntimetabolites, AntineoplasticErythrocyte TransfusionHematologic AgentsMutationHematopoietic Stem CellsTransplantation, HomologousSurvival AnalysisChelation TherapyIn Situ Hybridization, FluorescenceAntigens, CD34ErythropoietinBlood TransfusionDown SyndromeCytarabineMetabolic Syndrome XRemission InductionBlast CrisisTransplantation ConditioningBone Marrow ExaminationThrombocytopeniaHematopoiesisChromosomes, Human, Pair 8Survival RateBlood Cell CountVidarabineDisease ProgressionMolecular Sequence DataSweet SyndromeAnemia, MacrocyticGranulocyte Colony-Stimulating FactorHematologic DiseasesBase SequenceAntineoplastic AgentsTranslocation, GeneticCore Binding Factor Alpha 2 SubunitChromosome DisordersKaryotypeChromosomes, Human, Pair 20AnemiaHaploinsufficiencyRetrospective StudiesErythroid Precursor CellsComparative Genomic HybridizationHematologic NeoplasmsPrimary MyelofibrosisIron Chelating AgentsFlow CytometryDNA Mutational AnalysisDNA MethylationLeukemia, Myelomonocytic, AcuteHematinicsErythroid CellsDNA Modification MethylasesBone Marrow TransplantationErythroblastsRisk FactorsImmunophenotypingHemoglobinuria, ParoxysmalIsochromosomesAntilymphocyte SerumFatal OutcomeBusulfanGenomic InstabilityRecurrenceHLA-DR Serological Subtypes