Hematopoietic Stem Cell TransplantationStem CellsStem Cell TransplantationFetal BloodSpinal CordTransplantation, HomologousHematopoietic Stem CellsTransplantation, AutologousSpinal Cord InjuriesHematologic NeoplasmsGraft vs Host DiseaseTransplantationEmbryonic Stem CellsTransplantation ConditioningAdult Stem CellsTissue DonorsCytomegalovirus InfectionsImmunocompromised HostPeripheral Blood Stem Cell TransplantationUmbilical CordGraft SurvivalPluripotent Stem CellsTreatment OutcomeHistocompatibility TestingCell DifferentiationBone Marrow TransplantationAntigens, CD34Opportunistic InfectionsStem Cell NicheKidney TransplantationNeural Stem CellsRoseolovirus InfectionsMycosesMesenchymal Stem Cell TransplantationImmunosuppressive AgentsInduced Pluripotent Stem CellsCord Blood Stem Cell TransplantationRetrospective StudiesHistocompatibilityAspergillosisTime FactorsTransplantsHematopoietic Stem Cell MobilizationStem Cell FactorMultipotent Stem CellsMesenchymal Stromal CellsCytomegalovirusCells, CulturedRecurrenceCell LineageInfant, NewbornTransplantation ChimeraHematologic DiseasesLeukemiaWhole-Body IrradiationGraft RejectionBlood BanksFlow CytometryHerpesvirus 6, HumanBusulfanMultiple MyelomaAntifungal AgentsAntiviral AgentsFatal OutcomeBone Marrow CellsFetal Stem CellsHepatic Veno-Occlusive DiseaseCell SeparationCombined Modality TherapyGanciclovirAnemia, AplasticSurvival RateCell ProliferationSurvival AnalysisBK VirusSpinal Cord DiseasesZygomycosisStem Cell ResearchSalvage TherapyAcute DiseaseRisk FactorsHematopoiesisCell Culture TechniquesCyclosporineMyeloablative AgonistsPolyomavirus InfectionsFollow-Up StudiesPlant StemsProspective StudiesImmunosuppressionPrecursor Cell Lymphoblastic Leukemia-LymphomaHLA AntigensPregnancyChimerismSpinal Cord CompressionLeukemia, Myelogenous, Chronic, BCR-ABL PositiveFetal Tissue TransplantationCell TransplantationLeukemia, Myeloid, AcuteLymphoproliferative Disorders