Cord Blood Stem Cell TransplantationFetal BloodPenile ImplantationHematopoietic Stem Cell TransplantationPeripheral Blood Stem Cell TransplantationMonocrotophosTransplantation, AutologousUmbilical CordTransplantation, HomologousStem CellsBlood BanksHematopoietic Stem CellsGraft vs Host DiseaseTransplantation ConditioningBone Marrow TransplantationAntigens, CD34Stem Cell TransplantationHematologic NeoplasmsCell DifferentiationHematopoietic Stem Cell MobilizationImmunosuppressive AgentsTreatment OutcomeCells, CulturedMice, SCIDSpinal CordGraft SurvivalTissue DonorsHistocompatibility TestingInfant, NewbornGranulocyte Colony-Stimulating FactorUmbilical VeinsUmbilical ArteriesLeukapheresisSpinal Cord InjuriesPregnancyTransplantation ChimeraMice, Inbred NODHistocompatibilityCytomegalovirus InfectionsBusulfanLeukemiaTransplantationTime FactorsMesenchymal Stromal CellsCell SeparationEmbryonic Stem CellsMyeloablative AgonistsBlood Component RemovalRecurrenceWhole-Body IrradiationFlow CytometryBlood CellsHematopoiesisRetrospective StudiesHematologic DiseasesCombined Modality Therapy