Cord Blood Stem Cell TransplantationFetal BloodPenile ImplantationUmbilical CordStem CellsUmbilical VeinsHematopoietic Stem CellsBlood BanksHematopoietic Stem Cell TransplantationAntigens, CD34Umbilical ArteriesMonocrotophosCells, CulturedMesenchymal Stromal CellsCell DifferentiationSpinal CordWharton JellyStem Cell TransplantationPeripheral Blood Stem Cell TransplantationInfant, NewbornPregnancyHuman Umbilical Vein Endothelial CellsMice, SCIDMice, Inbred NODCell SeparationMesenchymal Stem Cell TransplantationCell Culture TechniquesSpinal Cord InjuriesCell LineageEndothelium, VascularFlow CytometryEndothelial CellsAdult Stem CellsAntigens, CDHematopoietic Stem Cell MobilizationHernia, UmbilicalColony-Forming Units AssayStem Cell FactorEmbryonic Stem CellsTransplantation, AutologousCell ProliferationTransplantation, HomologousTransplantation ConditioningCoculture TechniquesGraft vs Host DiseasePluripotent Stem CellsMultipotent Stem CellsBone Marrow CellsHematopoiesisImmunophenotypingUrachal CystMaternal-Fetal ExchangeHematologic NeoplasmsGranulocyte-Macrophage Progenitor CellsBlood CellsFetal Stem CellsStem Cell NicheTime FactorsInduced Pluripotent Stem CellsAntigens, CD38Neural Stem CellsTransplantation, HeterologousHistocompatibility TestingGraft SurvivalGestational AgeBlood PreservationADP-ribosyl CyclasePlacentaTissue EngineeringFetusBlood Cell CountGranulocyte Colony-Stimulating FactorCell SurvivalLeukocytes, MononuclearNeovascularization, PhysiologicReverse Transcriptase Polymerase Chain ReactionStromal CellsLiver ExtractsUltrasonography, PrenatalImmunohistochemistryUmbilicusPlant StemsCell DivisionCell MovementTransplantation ChimeraCulture Media, ConditionedAntigens, CD45Cell AdhesionRNA, MessengerBiological MarkersNuchal CordMyeloablative AgonistsLeukapheresisDonor SelectionTissue DonorsOsteogenesisUnrelated DonorsCalcium PhosphatesGene Expression RegulationCell Transplantation