Cord Blood Stem Cell TransplantationTransplantation, HomologousHematopoietic Stem Cell TransplantationStem Cell TransplantationGraft vs Host DiseaseTransplantation ConditioningHematologic NeoplasmsCytomegalovirus InfectionsRoseolovirus InfectionsTransplantation, AutologousAspergillosisHistocompatibility TestingStem CellsCytomegalovirusTreatment OutcomeBone Marrow TransplantationFetal BloodRetrospective StudiesTissue DonorsTransplantation ChimeraHematopoietic Stem CellsPeripheral Blood Stem Cell TransplantationGraft SurvivalGraft vs Leukemia EffectBusulfanRecurrenceImmunosuppressive AgentsRemission InductionMyeloablative AgonistsLeukemiaVidarabineGraft vs Tumor EffectHistocompatibilityImmunocompromised HostTransplantationT-LymphocytesWhole-Body IrradiationLeukemia, Myeloid, AcuteTime FactorsLeukemia, Myelogenous, Chronic, BCR-ABL PositiveMultiple MyelomaLymphocyte DepletionCombined Modality TherapyEmbryonic Stem CellsSpinal CordAntigens, CD34Salvage TherapyOpportunistic InfectionsPrecursor Cell Lymphoblastic Leukemia-LymphomaHematopoietic Stem Cell MobilizationSurvival AnalysisAdult Stem CellsVirus ActivationSiblingsSurvival RateMycosesAnemia, AplasticGraft RejectionAcute DiseaseMyelodysplastic SyndromesLymphocyte TransfusionHepatic Veno-Occlusive DiseaseImmunosuppressionHematologic DiseasesChimerismCell DifferentiationMinor Histocompatibility AntigensCells, CulturedAntilymphocyte SerumFlow CytometryCyclophosphamideHLA AntigensHerpesvirus 6, HumanPluripotent Stem CellsTransplantation ImmunologyGanciclovirAntineoplastic Combined Chemotherapy ProtocolsBlood Transfusion, AutologousDisease-Free SurvivalLeukocyte TransfusionMice, Inbred C57BLFollow-Up StudiesBone Marrow CellsMelphalanNeoplasm, ResidualSpinal Cord InjuriesFatal OutcomeAntiviral AgentsLymphocyte Culture Test, MixedCyclosporineLymphoproliferative DisordersKidney TransplantationCell SeparationMesenchymal Stem Cell TransplantationAntineoplastic AgentsIsoantigensPyrimidinesStem Cell NicheT-Lymphocytes, CytotoxicCytotoxicity, Immunologic