Hematopoietic Stem Cell TransplantationFetal BloodUmbilical CordStem Cell TransplantationCord Blood Stem Cell TransplantationBone MarrowTransplantation, HomologousBone Marrow TransplantationBone Marrow CellsStem CellsTransplantation, AutologousHematopoietic Stem CellsTransplantation ConditioningGraft vs Host DiseasePeripheral Blood Stem Cell TransplantationAntigens, CD34Hematologic NeoplasmsBlood BanksBone and BonesSpinal CordTransplantation ChimeraCell DifferentiationGraft SurvivalTissue DonorsHistocompatibility TestingInfant, NewbornMesenchymal Stem Cell TransplantationTreatment OutcomeLiver TransplantationCells, CulturedUmbilical VeinsMesenchymal Stromal CellsMyeloablative AgonistsPregnancySpinal Cord InjuriesWhole-Body IrradiationUmbilical ArteriesCell TransplantationHematopoiesisLeukemiaBusulfanTime FactorsFlow CytometryColony-Forming Units AssayCell SeparationEmbryonic Stem CellsHistocompatibilityRecurrenceMultiple MyelomaCell LineageKidney TransplantationRetrospective StudiesHematopoietic Stem Cell MobilizationCell Culture TechniquesBone Marrow DiseasesAdult Stem CellsHematologic DiseasesImmunosuppressive AgentsGraft vs Leukemia EffectCombined Modality TherapyRemission InductionImmunophenotypingAntigens, CDAnemia, AplasticHLA AntigensLeukemia, Myeloid, AcuteMice, SCIDUnrelated DonorsStem Cell FactorMelphalanVidarabineChimerismFetal Stem CellsBone RemodelingBone Marrow ExaminationDisease-Free SurvivalBone Marrow PurgingDonor SelectionSurvival AnalysisT-LymphocytesSurvival RateCell ProliferationBlood Cell CountMice, Inbred C57BLBlood CellsMaternal-Fetal ExchangeCyclophosphamideTransplantation ImmunologyBone Marrow NeoplasmsPluripotent Stem CellsGranulocyte Colony-Stimulating FactorSiblingsPrecursor Cell Lymphoblastic Leukemia-LymphomaMyelodysplastic SyndromesMice, Inbred NODStem Cell NicheMultipotent Stem CellsHeart TransplantationTransplantation, HeterologousGraft Rejection