Peripheral Blood Stem Cell TransplantationFetal BloodStem CellsHematopoietic Stem Cell TransplantationTransplantation, AutologousHematopoietic Stem Cell MobilizationHematopoietic Stem CellsTransplantation, HomologousStem Cell TransplantationCordocentesisLeukapheresisGranulocyte Colony-Stimulating FactorCord Blood Stem Cell TransplantationAntigens, CD34Blood Component RemovalEmbryonic Stem CellsTransplantation ConditioningGraft SurvivalAdult Stem CellsFetusGraft vs Host DiseaseHematologic NeoplasmsBone Marrow TransplantationPregnancyMelphalanPluripotent Stem CellsMaternal-Fetal ExchangeBlood Transfusion, IntrauterineTissue DonorsCombined Modality TherapyCyclophosphamideStem Cell NicheKidney TransplantationTreatment OutcomeFetomaternal TransfusionCell DifferentiationNeural Stem CellsMultiple MyelomaInduced Pluripotent Stem CellsBusulfanFetal DiseasesBlood CellsImmunosuppressive AgentsHematopoiesisAntineoplastic Combined Chemotherapy ProtocolsStem Cell FactorFetal Stem CellsRh IsoimmunizationErythroblastosis, FetalMesenchymal Stem Cell TransplantationPlacentaMultipotent Stem CellsBlood Cell CountAmniotic FluidRecurrenceMesenchymal Stromal CellsHistocompatibilityCell LineageAntineoplastic Agents, AlkylatingFetoscopyLymphoma, Non-HodgkinTransplantsHistocompatibility TestingHeart Rate, FetalTransplantation ChimeraTime FactorsThiotepaWhole-Body IrradiationEtoposideMyeloablative AgonistsGestational AgePrenatal DiagnosisBone Marrow CellsRetrospective StudiesFetal HypoxiaRemission InductionGraft RejectionLeukemiaHydrops FetalisColony-Forming Units AssayInfectionCell SeparationCells, CulturedSheepSurvival RateStem Cell ResearchFlow CytometryCyclosporineBlood Specimen CollectionVidarabineDisease-Free SurvivalBlood DonorsCytomegalovirus InfectionsUmbilical ArteriesSurvival AnalysisPlatelet CountPlant StemsUmbilical CordBone Marrow PurgingTransplantation, Isogeneic