Fetal BloodUmbilical CordCord Blood Stem Cell TransplantationAntigens, CD34Hematopoietic Stem CellsSpinal CordUmbilical VeinsCells, CulturedMesenchymal Stromal CellsBlood BanksInfant, NewbornCell DifferentiationStem CellsSpinal Cord InjuriesCell Culture TechniquesCell SeparationUmbilical ArteriesPregnancyWharton JellyLiver ExtractsMice, SCIDAntigens, CDMice, Inbred NODFlow CytometryHuman Umbilical Vein Endothelial CellsHematopoietic Stem Cell TransplantationColony-Forming Units AssayImmunophenotypingEndothelial CellsCell LineageCoculture TechniquesAntigens, CD38ADP-ribosyl CyclaseTransplantation, HeterologousLeukocytes, MononuclearAntigens, CD45Endothelium, VascularCell ProliferationBone Marrow CellsStem Cell FactorHematopoiesisStem Cell TransplantationMaternal-Fetal ExchangeTime FactorsGranulocyte-Macrophage Progenitor CellsCell SurvivalImmunohistochemistryMesenchymal Stem Cell TransplantationReverse Transcriptase Polymerase Chain ReactionBlood PreservationCell DivisionCytokinesGraft vs Host DiseaseHistocompatibility TestingBlood CellsDisease Models, AnimalRats, Sprague-DawleyGlycoproteinsHernia, UmbilicalTransplantation ConditioningNuchal CordPlacentaT-LymphocytesGestational AgeNeovascularization, PhysiologicPeptidesStromal CellsSpinal Cord DiseasesHematologic NeoplasmsUrachal CystFetusSpinal Cord CompressionCulture Media, ConditionedDonor SelectionCell AdhesionRats, WistarBlood Cell CountUnrelated DonorsTissue EngineeringNeuronsTransplantation, HomologousGraft SurvivalRNA, MessengerCalcium PhosphatesOsteogenesisCell MovementSpermatic CordOpiate AlkaloidsNAD+ NucleosidaseFetal Stem CellsCulture Media, Serum-FreeMaternal ExposureTransplantation ChimeraCell TransplantationBiological MarkersCells, ImmobilizedAmniotic FluidImmunogenetic PhenomenaSpinal Cord NeoplasmsCryopreservation