Umbilical CordFetal BloodSpinal CordSpinal Cord InjuriesUmbilical VeinsUmbilical ArteriesCord Blood Stem Cell TransplantationBlood BanksInfant, NewbornPregnancyAntigens, CD34Hematopoietic Stem CellsMaternal-Fetal ExchangeCells, CulturedHernia, UmbilicalSpinal Cord DiseasesUrachal CystSpinal Cord CompressionGestational AgeCell DifferentiationHematopoietic Stem Cell TransplantationSpermatic CordPlacentaMesenchymal Stromal CellsWharton JellyFetusSpinal Cord NeoplasmsCell SeparationCell Culture TechniquesSpinal Cord IschemiaHuman Umbilical Vein Endothelial CellsBlood PreservationMice, SCIDFlow CytometryUltrasonography, PrenatalColony-Forming Units AssayAntigens, CDStem CellsNuchal CordHistocompatibility TestingImmunophenotypingUmbilicusGraft vs Host DiseaseMice, Inbred NODMaternal ExposureTime FactorsAntigens, CD38Fetal HypoxiaTransplantation ConditioningCell LineageADP-ribosyl CyclaseBone Marrow CellsAmniotic FluidHematologic NeoplasmsCord FactorsEndothelial CellsEndothelium, VascularLeukocytes, MononuclearHematopoiesisBlood CellsCoculture TechniquesParaplegiaBlood Cell CountGraft SurvivalTransplantation, HomologousUnrelated DonorsVocal CordsStem Cell FactorFetal Stem CellsBirth WeightDonor SelectionDelivery, ObstetricCell ProliferationNAD+ NucleosidaseFetal DiseasesTransplantation ChimeraMeconiumAntigens, CD45Cesarean SectionCryopreservationInfant, Newborn, DiseasesApgar ScoreFetal Growth RetardationSpinal Cord RegenerationInfant, PrematureTransplantation, HeterologousPregnancy Trimester, ThirdPregnancy OutcomeConstrictionStem Cell TransplantationHLA AntigensCalciumTissue DonorsBlood DonorsRats, Sprague-DawleyUrachusPregnancy ComplicationsCell DivisionCytokinesMotor Neurons