Cord Blood Stem Cell TransplantationFetal BloodPenile ImplantationHematopoietic Stem Cell TransplantationUmbilical CordPeripheral Blood Stem Cell TransplantationMonocrotophosTransplantation, AutologousTransplantation, HomologousBlood BanksHematopoietic Stem CellsStem CellsGraft vs Host DiseaseTissue DonorsTransplantation ConditioningAntigens, CD34Bone Marrow TransplantationRegistriesHematopoietic Stem Cell MobilizationHistocompatibility TestingCell DifferentiationUmbilical VeinsStem Cell TransplantationCells, CulturedHematologic NeoplasmsTreatment OutcomeUmbilical ArteriesGraft SurvivalInfant, NewbornMice, SCIDImmunosuppressive AgentsGranulocyte Colony-Stimulating FactorPregnancyDonor SelectionBlood DonorsSpinal CordTime FactorsHematopoiesisMesenchymal Stromal CellsMice, Inbred NODKidney TransplantationCell SeparationRetrospective StudiesLiving DonorsColony-Forming Units AssayBone Marrow CellsFlow CytometryRecurrenceTransplantation ChimeraLeukemia