Cord Blood Stem Cell TransplantationFetal Tissue TransplantationFetal BloodUmbilical CordSpinal CordBlood BanksSpinal Cord InjuriesTransplantation, HomologousUmbilical VeinsInfant, NewbornAntigens, CD34Umbilical ArteriesHematopoietic Stem Cell TransplantationHematopoietic Stem CellsPregnancyGraft vs Host DiseaseTransplantation ConditioningGraft SurvivalHistocompatibility TestingCells, CulturedMaternal-Fetal ExchangeBone Marrow TransplantationHematologic NeoplasmsTissue DonorsCell DifferentiationCell SeparationTransplantsBlood PreservationMesenchymal Stromal CellsTransplantation ChimeraAntigens, CDCell Culture TechniquesFlow CytometryImmunophenotypingMice, SCIDKidney TransplantationColony-Forming Units AssayTime FactorsStem CellsHernia, UmbilicalNuchal CordMice, Inbred NODBone Marrow CellsPlacentaGestational AgeAntigens, CD38Graft RejectionLeukemiaStem Cell TransplantationTreatment OutcomeImmunosuppressive AgentsSpinal Cord DiseasesHLA AntigensT-LymphocytesUnrelated DonorsBlood CellsMyeloablative AgonistsDonor SelectionFetusUrachal CystBlood Cell CountADP-ribosyl CyclaseHistocompatibilityCell LineageHematopoiesisSpinal Cord CompressionLeukocytes, MononuclearCoculture TechniquesHematologic DiseasesBlood Transfusion, AutologousBlood DonorsSpermatic CordRetrospective StudiesFetal Stem CellsCryopreservationMaternal ExposureWharton JellyAllograftsNAD+ NucleosidaseWhole-Body IrradiationAnemia, AplasticGraft vs Leukemia EffectAmniotic FluidTransplantation, HeterologousAntigens, CD45Spinal Cord NeoplasmsStem Cell FactorTransplantation, AutologousCytomegalovirus InfectionsEndothelial CellsCell ProliferationChimerismSpinal Cord IschemiaHuman Umbilical Vein Endothelial CellsLymphocyte ActivationRecurrenceBlood TransfusionInfant, Postmature