Transplantation ChimeraHematopoietic Stem Cell TransplantationTransplantation, HomologousStem CellsStem Cell TransplantationTransplantation, AutologousChimeraKidney TransplantationBone Marrow TransplantationLiver TransplantationTransplantationTransplantation ConditioningGraft vs Host DiseaseHematopoietic Stem CellsHematologic NeoplasmsTissue DonorsGraft SurvivalHeart TransplantationPeripheral Blood Stem Cell TransplantationEmbryonic Stem CellsTreatment OutcomeLung TransplantationCytomegalovirus InfectionsImmunosuppressive AgentsAdult Stem CellsGraft RejectionImmunocompromised HostHistocompatibility TestingRetrospective StudiesOrgan TransplantationMesenchymal Stem Cell TransplantationPluripotent Stem CellsTime FactorsOpportunistic InfectionsHistocompatibilityTransplantsCell TransplantationCell DifferentiationCord Blood Stem Cell TransplantationStem Cell NicheMycosesRecurrenceHematopoietic Stem Cell MobilizationTransplantation ImmunologyNeural Stem CellsAspergillosisInduced Pluripotent Stem CellsWhole-Body IrradiationRoseolovirus InfectionsCytomegalovirusImmunosuppressionBusulfanMultipotent Stem CellsIslets of Langerhans TransplantationLiving DonorsMesenchymal Stromal CellsLeukemiaFetal Tissue TransplantationSurvival RateMultiple MyelomaCyclosporineSurvival AnalysisPostoperative ComplicationsHematologic DiseasesCombined Modality TherapyStem Cell FactorPancreas TransplantationFollow-Up StudiesAntigens, CD34Tissue and Organ ProcurementHepatic Veno-Occlusive DiseaseAntiviral AgentsFatal OutcomeCells, CulturedTransplantation, IsogeneicAnemia, AplasticCell LineageRisk FactorsAntifungal AgentsRadiation ChimeraAcute DiseaseSalvage TherapyBone Marrow CellsGanciclovirTransplantation, HeterotopicHerpesvirus 6, HumanMyeloablative AgonistsChimerismHeart-Lung TransplantationFlow CytometryHLA AntigensLeukemia, Myelogenous, Chronic, BCR-ABL PositiveLymphoproliferative DisordersBK VirusMice, Inbred C57BLProspective StudiesLeukemia, Myeloid, AcuteAntineoplastic Combined Chemotherapy ProtocolsPrecursor Cell Lymphoblastic Leukemia-LymphomaFetal Stem Cells