Umbilical CordFetal BloodUmbilical VeinsUmbilical ArteriesCord Blood Stem Cell TransplantationSpinal CordSpinal Cord InjuriesHernia, UmbilicalPregnancyUrachal CystInfant, NewbornBlood BanksWharton JellyHuman Umbilical Vein Endothelial CellsGlucose Clamp TechniqueUltrasonography, PrenatalUmbilicusCells, CulturedGestational AgeMesenchymal Stromal CellsAntigens, CD34FetusMaternal-Fetal ExchangeHematopoietic Stem CellsPlacentaEndothelium, VascularFetal HypoxiaEndothelial CellsCell DifferentiationUrachusSpinal Cord DiseasesFetal DiseasesConstrictionCell SeparationTime FactorsSpinal Cord CompressionStem CellsNuchal CordCell Culture TechniquesUltrasonography, DopplerHeart Rate, FetalFetal Growth RetardationPlacental CirculationAmniotic FluidHematopoietic Stem Cell TransplantationAsphyxiaApgar ScoreSpermatic CordMeconiumPregnancy Trimester, FirstCesarean SectionFlow CytometryPregnancy OutcomeAntigens, CDFetal DistressSpinal Cord NeoplasmsDelivery, ObstetricCoculture TechniquesBlood PreservationProlapseOligohydramniosGraft vs Host DiseasePatch-Clamp TechniquesColony-Forming Units AssayMice, SCIDSpinal Cord IschemiaCell ProliferationMesenchymal Stem Cell TransplantationImmunophenotypingTransplantation ConditioningHistocompatibility TestingBlood Flow VelocityChorioamnionitisCell LineageSingle Umbilical ArteryBirth WeightMembrane PotentialsInfant, Newborn, DiseasesPre-EclampsiaGenetic PhenomenaPregnancy Trimester, SecondPlacenta DiseasesNeovascularization, PhysiologicIntestinal AtresiaPregnancy Trimester, ThirdRNA, MessengerUltrasonography, Doppler, ColorAmnionFetoscopyAntigens, CD38Rats, Sprague-DawleySheepBone Marrow CellsMaternal ExposureAnti-Infective Agents, LocalFetal Stem CellsCell AdhesionMice, Inbred NODFetal MonitoringHematologic Neoplasms