Hematopoietic Stem Cell TransplantationTransplantation, HomologousStem Cell TransplantationGraft vs Host DiseaseTransplantation ConditioningCytomegalovirus InfectionsHematologic NeoplasmsAspergillosisTransplantation, AutologousStem CellsPeripheral Blood Stem Cell TransplantationMyeloablative AgonistsTransplantationRoseolovirus InfectionsTreatment OutcomeBone Marrow TransplantationTransplantation ChimeraHistocompatibility TestingTissue DonorsImmunocompromised HostRetrospective StudiesCytomegalovirusBusulfanGraft SurvivalGraft vs Leukemia EffectRecurrenceImmunosuppressive AgentsKidney TransplantationRemission InductionHematopoietic Stem CellsOpportunistic InfectionsVidarabineLiver TransplantationCord Blood Stem Cell TransplantationMycosesGraft vs Tumor EffectWhole-Body IrradiationLeukemiaMultiple MyelomaCombined Modality TherapyTime FactorsHistocompatibilityLeukemia, Myeloid, AcuteSurvival AnalysisSiblingsLymphocyte TransfusionAntiviral AgentsSurvival RateGanciclovirLeukemia, Myelogenous, Chronic, BCR-ABL PositiveSalvage TherapyDisease-Free SurvivalGraft RejectionEmbryonic Stem CellsMesenchymal Stem Cell TransplantationLymphocyte DepletionMelphalanAntilymphocyte SerumHematopoietic Stem Cell MobilizationMyelodysplastic SyndromesHepatic Veno-Occlusive DiseasePrecursor Cell Lymphoblastic Leukemia-LymphomaVirus ActivationOrgan TransplantationAdult Stem CellsChimerismAntifungal AgentsMinor Histocompatibility AntigensCyclophosphamideHeart TransplantationAntineoplastic Combined Chemotherapy ProtocolsZygomycosisNeoplasm, ResidualCell TransplantationImmunosuppressionFollow-Up StudiesAcute DiseaseTransplantation ImmunologyPyrimidinesHematologic DiseasesT-LymphocytesHLA AntigensAntigens, CD34Adenovirus Infections, HumanLung TransplantationRisk FactorsCyclosporineAnemia, AplasticFatal OutcomeProspective StudiesIncidencePluripotent Stem CellsPrognosisViral LoadLymphoproliferative DisordersCell DifferentiationPolymerase Chain ReactionStem Cell NicheGranulocyte Colony-Stimulating FactorLymphoma, Non-Hodgkin