Hematopoietic Stem Cell TransplantationTransplantation, HomologousHematologic NeoplasmsGraft vs Host DiseaseHematopoietic Stem CellsCytomegalovirus InfectionsTransplantation ConditioningStem Cell TransplantationStem CellsCytomegalovirusTissue DonorsTransplantation, AutologousTreatment OutcomeBone Marrow TransplantationGraft vs Leukemia EffectTransplantation ChimeraImmunocompromised HostHistocompatibilityOpportunistic InfectionsRetrospective StudiesLeukemiaRecurrencePeripheral Blood Stem Cell TransplantationHematologic DiseasesGraft SurvivalWhole-Body IrradiationBusulfanMyeloablative AgonistsMycosesGraft vs Tumor EffectHistocompatibility TestingHepatic Veno-Occlusive DiseaseVidarabineAspergillosisTime FactorsChimerismLeukemia, Myeloid, AcuteEmbryonic Stem CellsImmunosuppressive AgentsAcute DiseaseHematopoietic Stem Cell MobilizationMyelodysplastic SyndromesAdult Stem CellsSurvival RateRemission InductionLymphocyte TransfusionLeukemia, Myelogenous, Chronic, BCR-ABL PositiveSiblingsTransplantationSurvival AnalysisHematopoiesisPrecursor Cell Lymphoblastic Leukemia-LymphomaCell DifferentiationStem Cell NicheCord Blood Stem Cell TransplantationBone Marrow CellsAllograftsAntigens, CD34Lymphoproliferative DisordersFatal OutcomeAntifungal AgentsFlow CytometryT-LymphocytesLymphocyte DepletionMinor Histocompatibility AntigensHLA AntigensAntiviral AgentsAnemia, AplasticMice, Inbred C57BLPluripotent Stem CellsCell LineageRisk FactorsFollow-Up StudiesBK VirusCombined Modality TherapySalvage TherapyMultiple MyelomaVirus ActivationNeoplasm, ResidualFetal BloodDisease-Free SurvivalTransplantation ImmunologyCells, CulturedIncidenceMultipotent Stem CellsCystitisStem Cell FactorPrognosisAntilymphocyte SerumGanciclovirProspective StudiesInduced Pluripotent Stem CellsNeural Stem CellsCyclophosphamideMesenchymal Stem Cell TransplantationRoseolovirus InfectionsTransplantation, IsogeneicImmunosuppressionTriazolesMesenchymal Stromal Cells