Bone Marrow TransplantationUmbilical CordBone MarrowTransplantation, HomologousBone Marrow CellsFetal BloodGraft vs Host DiseaseTransplantation, AutologousUmbilical VeinsCord Blood Stem Cell TransplantationUmbilical ArteriesWhole-Body IrradiationHematopoietic Stem Cell TransplantationBone and BonesTransplantation ConditioningHematopoietic Stem CellsSpinal CordAnemia, AplasticLeukemiaTransplantation ChimeraGraft SurvivalTissue DonorsLeukocytes, MononuclearLiver TransplantationHistocompatibility TestingCells, CulturedBusulfanBone Marrow PurgingT-LymphocytesTime FactorsHematopoiesisHistocompatibilityCyclophosphamideFlow CytometryAntigens, CD34Spinal Cord InjuriesTransplantation, IsogeneicPregnancyMice, Inbred C57BLBone Marrow DiseasesHematologic NeoplasmsTreatment OutcomeRecurrenceCell DifferentiationKidney TransplantationLymphocytesColony-Forming Units AssayCombined Modality TherapyLeukemia, Myeloid, AcuteBlood CellsImmunosuppressive AgentsHernia, UmbilicalLeukemia, Myelogenous, Chronic, BCR-ABL PositiveInfant, NewbornRadiation ChimeraStem Cell TransplantationLeukocyte CountCell SeparationImmunophenotypingAntigens, CDBone Marrow ExaminationGraft RejectionPrecursor Cell Lymphoblastic Leukemia-LymphomaRemission InductionAcute DiseaseHLA AntigensPeripheral Blood Stem Cell TransplantationTransplantation ImmunologyImmunosuppressionLeukemia, MyeloidLymphoma, Non-HodgkinLymphocyte ActivationLymphocyte DepletionRetrospective StudiesHepatic Veno-Occlusive DiseaseUrachal CystBone RemodelingGranulocyte Colony-Stimulating FactorBone Marrow NeoplasmsLeukocyte TransfusionGraft vs Host ReactionHematologic DiseasesSevere Combined ImmunodeficiencyMesenchymal Stromal CellsBlood Cell CountChimeraSurvival AnalysisBlood BanksHeart TransplantationMonocytesStem CellsHematopoietic Stem Cell MobilizationPolymerase Chain ReactionAntibodies, MonoclonalMyelodysplastic SyndromesB-LymphocytesFollow-Up StudiesCyclosporineSpleenLymphocyte Transfusion