Myelodysplastic SyndromesAnemia, RefractoryAnemia, Refractory, with Excess of BlastsSyndromeLeukemia, Myelomonocytic, ChronicLeukemia, Myeloid, AcuteChromosomes, Human, Pair 5Survival RateLeukemia, MyeloidAzacitidineBone MarrowAnemia, SideroblasticChromosome AberrationsKaryotypingMonosomyThalidomidePreleukemiaMyeloproliferative DisordersTreatment OutcomeCell SurvivalSurvival AnalysisPrognosisMyelodysplastic-Myeloproliferative DiseasesAnemia, AplasticPancytopeniaChromosomes, Human, Pair 7Cytogenetic AnalysisDisease-Free SurvivalBone Marrow CellsAcute DiseaseLeukemiaChromosome DeletionGranulocyte Precursor CellsNeoplasms, Second PrimaryHematopoietic Stem Cell TransplantationAntimetabolites, AntineoplasticBone Marrow DiseasesSurvivalTrisomyIron OverloadTransplantation, HomologousCytogeneticsRetrospective StudiesErythrocyte TransfusionHematologic AgentsHematopoietic Stem CellsRemission InductionChelation TherapyAntineoplastic AgentsCytarabineBlood TransfusionAntigens, CD34MutationDisease ProgressionErythropoietinDown SyndromeTransplantation ConditioningMetabolic Syndrome XBlast CrisisThrombocytopeniaAntineoplastic Combined Chemotherapy ProtocolsBone Marrow ExaminationHematopoiesisVidarabineIn Situ Hybridization, FluorescenceBlood Cell CountGranulocyte Colony-Stimulating FactorGraft SurvivalFollow-Up StudiesKaplan-Meier EstimateHematologic DiseasesRisk FactorsSweet SyndromeAnemia, MacrocyticChromosomes, Human, Pair 8AnemiaTime FactorsCore Binding Factor Alpha 2 SubunitRecurrenceChromosome DisordersTranslocation, GeneticHematologic NeoplasmsErythroid Precursor CellsHaploinsufficiencyKaryotypeBone Marrow TransplantationPrimary MyelofibrosisApoptosisChromosomes, Human, Pair 20Iron Chelating AgentsLeukemia, Myelomonocytic, AcuteHematinicsImmunophenotypingDNA Modification MethylasesErythroid CellsAntilymphocyte SerumFlow CytometryErythroblastsCombined Modality TherapyBusulfan