Cord Blood Stem Cell TransplantationFetal BloodUmbilical CordBlood BanksSpinal CordTransplantation, HomologousHematopoietic Stem CellsHematopoietic Stem Cell TransplantationAntigens, CD34Umbilical VeinsInfant, NewbornStem CellsUmbilical ArteriesSpinal Cord InjuriesPregnancyGraft vs Host DiseaseTransplantation ConditioningGraft SurvivalCells, CulturedHistocompatibility TestingMaternal-Fetal ExchangeBone Marrow TransplantationStem Cell TransplantationHematologic NeoplasmsCell DifferentiationMesenchymal Stromal CellsTissue DonorsCell SeparationTransplantsFlow CytometryTransplantation ChimeraAntigens, CDBlood PreservationMice, SCIDColony-Forming Units AssayImmunophenotypingCell Culture TechniquesKidney TransplantationTime FactorsBone Marrow CellsMice, Inbred NODHernia, UmbilicalLeukemiaCell LineageAntigens, CD38Graft RejectionPlacentaTreatment OutcomeImmunosuppressive AgentsGestational AgeHematopoiesisT-LymphocytesHLA AntigensNuchal CordBlood CellsMyeloablative AgonistsBlood Cell CountStem Cell FactorUnrelated DonorsFetal Stem CellsFetusDonor SelectionADP-ribosyl CyclaseHistocompatibilityUrachal CystCoculture TechniquesLeukocytes, MononuclearHematologic DiseasesCell ProliferationBlood Transfusion, AutologousTransplantation, AutologousBlood DonorsWhole-Body IrradiationCryopreservationRetrospective StudiesTransplantation, HeterologousAnemia, AplasticGraft vs Leukemia EffectNAD+ NucleosidaseAllograftsWharton JellyMaternal ExposureAmniotic FluidAntigens, CD45Endothelial CellsCytomegalovirus InfectionsChimerismMesenchymal Stem Cell TransplantationRecurrenceHuman Umbilical Vein Endothelial CellsLymphocyte ActivationBlood TransfusionBusulfanInfant, PostmatureSpinal Cord DiseasesBiological MarkersCell Division