Cord Blood Stem Cell TransplantationFetal BloodGraft vs Host DiseaseTransplantation ConditioningUmbilical CordHematologic NeoplasmsHematopoietic Stem Cell TransplantationBlood BanksTransplantation, HomologousHistocompatibility TestingTransplantation ChimeraGraft SurvivalMyeloablative AgonistsChimerismTransplantsTissue DonorsVolvariellaHematologic DiseasesHematopoietic Stem CellsBone Marrow TransplantationLeukemiaWhole-Body IrradiationHLA AntigensVidarabineInfant, NewbornGraft vs Leukemia EffectHistocompatibilityTreatment OutcomeAntigens, CD34Anemia, AplasticAllograftsBlood DonorsAntilymphocyte SerumSpinal CordStem Cell TransplantationUnrelated DonorsImmunogenetic PhenomenaLiver TransplantationMice, SCIDUmbilical VeinsRecurrenceRetrospective StudiesColony-Forming Units AssayHematopoiesisUmbilical ArteriesMice, Inbred NODPregnancyGraft RejectionTime FactorsSpinal Cord InjuriesDisease-Free SurvivalTransplantation, HeterologousTransplantation, AutologousImmunosuppressive AgentsCytomegalovirus InfectionsCells, CulturedImmunophenotypingBlood CellsKidney TransplantationCell DifferentiationFlow CytometryBone Marrow CellsLeukodystrophy, Globoid CellMesenchymal Stromal CellsCell TransplantationInterleukin Receptor Common gamma SubunitStem CellsPrecursor Cell Lymphoblastic Leukemia-LymphomaSurvival AnalysisLeukemia, Myeloid, AcuteLeukocyte CountAcute DiseaseSevere Combined ImmunodeficiencyCell SeparationMaternal-Fetal ExchangeMyelodysplastic SyndromesBlood Cell CountHeart TransplantationT-LymphocytesSurvival RateCell LineageGraft Enhancement, ImmunologicMesenchymal Stem Cell TransplantationBlood PreservationPeripheral Blood Stem Cell TransplantationCell Culture TechniquesAntigens, CDHost vs Graft ReactionBusulfanCytomegalovirusLung TransplantationMice, Inbred C57BLTransplantation ImmunologyKiller Cells, NaturalRadiation Chimera