Fetal BloodUmbilical CordCord Blood Stem Cell TransplantationBlood BanksUmbilical VeinsUmbilical ArteriesInfant, NewbornAntigens, CD34PregnancyHematopoietic Stem CellsOrgan PreservationSpinal CordOrgan Preservation SolutionsSpinal Cord InjuriesCells, CulturedMaternal-Fetal ExchangeBlood PreservationHematopoietic Stem Cell TransplantationPreservation, BiologicalHernia, UmbilicalMesenchymal Stromal CellsCell DifferentiationCell SeparationCell Culture TechniquesGraft vs Host DiseaseCryopreservationHistocompatibility TestingStem CellsTransplantation ConditioningColony-Forming Units AssayUrachal CystAntigens, CDMice, SCIDGestational AgePlacentaFlow CytometryImmunophenotypingAntigens, CD38Nuchal CordHematologic NeoplasmsMice, Inbred NODDonor SelectionGraft SurvivalTransplantation, HomologousFertility PreservationADP-ribosyl CyclaseFetusUnrelated DonorsBlood Cell CountWharton JellyBone Marrow CellsCell LineageTime FactorsHuman Umbilical Vein Endothelial CellsFetal Stem CellsBlood CellsEndothelial CellsNAD+ NucleosidaseUltrasonography, PrenatalTransplantation ChimeraCoculture TechniquesUmbilicusHematopoiesisAmniotic FluidLeukocytes, MononuclearInfant, PostmatureMyeloablative AgonistsTissue DonorsBlood DonorsMaternal ExposureHematologic DiseasesEndothelium, VascularStem Cell FactorLeukemiaTransplantation, HeterologousHLA AntigensCell ProliferationBlood Transfusion, AutologousStem Cell TransplantationLeukodystrophy, MetachromaticAntigens, CD45RaffinoseCesarean SectionFetal HypoxiaTreatment OutcomeFetal DiseasesN-Acetylgalactosamine-4-SulfataseCerebroside-SulfataseInfant, PrematureTransplantsDelivery, ObstetricPenile ImplantationErythroid Precursor CellsGranulocyte-Macrophage Progenitor CellsAllograftsPregnancy OutcomeCell DivisionBlood Specimen CollectionAnemia, AplasticBiological Markers