Myelodysplastic SyndromesAnemia, RefractoryAnemia, Refractory, with Excess of BlastsSyndromeLeukemia, Myelomonocytic, ChronicLeukemia, Myeloid, AcuteChromosomes, Human, Pair 5Leukemia, MyeloidAzacitidineBone MarrowAnemia, SideroblasticChromosome AberrationsKaryotypingMonosomyThalidomidePreleukemiaMyeloproliferative DisordersMyelodysplastic-Myeloproliferative DiseasesPrognosisAnemia, AplasticPancytopeniaChromosomes, Human, Pair 7Cytogenetic AnalysisAcute DiseaseTreatment OutcomeLeukemiaBone Marrow CellsChromosome DeletionGranulocyte Precursor CellsNeoplasms, Second PrimaryBone Marrow DiseasesHematopoietic Stem Cell TransplantationTrisomyIron OverloadAntimetabolites, AntineoplasticCytogeneticsErythrocyte TransfusionHematologic AgentsRetrospective StudiesSurvival AnalysisHematopoietic Stem CellsTransplantation, HomologousChelation TherapyAntigens, CD34Blood TransfusionDown SyndromeErythropoietinRemission InductionSurvival RateCytarabineMetabolic Syndrome XMutationBone Marrow ExaminationBlast CrisisDisease ProgressionThrombocytopeniaTransplantation ConditioningIn Situ Hybridization, FluorescenceBlood Cell CountHematopoiesisVidarabineRisk FactorsSweet SyndromeAnemia, MacrocyticHematologic DiseasesGranulocyte Colony-Stimulating FactorAntineoplastic AgentsFatal OutcomeChromosomes, Human, Pair 8Chromosome DisordersAnemiaCore Binding Factor Alpha 2 SubunitTranslocation, GeneticHaploinsufficiencyErythroid Precursor CellsHematologic NeoplasmsKaryotypePrimary MyelofibrosisRecurrenceChromosomes, Human, Pair 20Follow-Up StudiesFlow CytometryIron Chelating AgentsHematinicsLeukemia, Myelomonocytic, AcuteImmunophenotypingBone Marrow TransplantationErythroid CellsErythroblastsDNA Mutational AnalysisHemoglobinuria, ParoxysmalDNA Modification MethylasesAntilymphocyte SerumBusulfanIsochromosomesAntineoplastic Combined Chemotherapy ProtocolsHLA-DR Serological SubtypesSensitivity and SpecificityPrenatal DiagnosisThrombocytosis