Cord Blood Stem Cell TransplantationTransplantation, HomologousHematopoietic Stem Cell TransplantationStem Cell TransplantationGraft vs Host DiseaseTransplantation ConditioningHematologic NeoplasmsCytomegalovirus InfectionsRoseolovirus InfectionsTransplantation, AutologousAspergillosisStem CellsHistocompatibility TestingTreatment OutcomeCytomegalovirusFetal BloodBone Marrow TransplantationRetrospective StudiesTissue DonorsPeripheral Blood Stem Cell TransplantationHematopoietic Stem CellsTransplantation ChimeraGraft SurvivalRecurrenceGraft vs Leukemia EffectBusulfanImmunosuppressive AgentsRemission InductionLeukemiaMyeloablative AgonistsVidarabineGraft vs Tumor EffectImmunocompromised HostHistocompatibilityTransplantationWhole-Body IrradiationCombined Modality TherapyLeukemia, Myeloid, AcuteSurvival AnalysisLeukemia, Myelogenous, Chronic, BCR-ABL PositiveTime FactorsMultiple MyelomaT-LymphocytesSurvival RateEmbryonic Stem CellsSalvage TherapyLymphocyte DepletionSpinal CordAntigens, CD34Precursor Cell Lymphoblastic Leukemia-LymphomaOpportunistic InfectionsHematopoietic Stem Cell MobilizationAdult Stem CellsSiblingsVirus ActivationMycosesAntineoplastic Combined Chemotherapy ProtocolsAnemia, AplasticMyelodysplastic SyndromesAcute DiseaseHematologic DiseasesDisease-Free SurvivalHepatic Veno-Occlusive DiseaseCell DifferentiationFollow-Up StudiesChimerismMinor Histocompatibility AntigensFlow CytometryGraft RejectionLymphocyte TransfusionCells, CulturedImmunosuppressionCyclophosphamideAntilymphocyte SerumHerpesvirus 6, HumanHLA AntigensPluripotent Stem CellsPrognosisGanciclovirBlood Transfusion, AutologousAntineoplastic AgentsLeukocyte TransfusionNeoplasm, ResidualMelphalanProspective StudiesFatal OutcomeSpinal Cord InjuriesTransplantation ImmunologyBone Marrow CellsAntiviral AgentsLymphoproliferative DisordersRisk FactorsPyrimidinesKidney TransplantationCyclosporineStem Cell NicheMesenchymal Stem Cell TransplantationCell SeparationGranulocyte Colony-Stimulating FactorLeukemia, Myeloid