Hematopoietic Stem Cell TransplantationStem CellsStem Cell TransplantationTransplantation, HomologousTransplantation, AutologousTransplantationKidney TransplantationHematopoietic Stem CellsHematologic NeoplasmsPostoperative ComplicationsGraft vs Host DiseaseTissue DonorsTreatment OutcomeGraft SurvivalEmbryonic Stem CellsTransplantsTransplantation ConditioningCytomegalovirus InfectionsImmunocompromised HostImmunosuppressive AgentsRetrospective StudiesAdult Stem CellsBone Marrow TransplantationPeripheral Blood Stem Cell TransplantationGraft RejectionOpportunistic InfectionsTime FactorsPluripotent Stem CellsHistocompatibility TestingMycosesStem Cell NicheAspergillosisHistocompatibilityNeural Stem CellsHeart TransplantationMesenchymal Stem Cell TransplantationCytomegalovirusRecurrenceInduced Pluripotent Stem CellsHematopoietic Stem Cell MobilizationCell DifferentiationRoseolovirus InfectionsFollow-Up StudiesMultipotent Stem CellsRisk FactorsLung TransplantationCyclosporineFatal OutcomeMesenchymal Stromal CellsWhole-Body IrradiationAntiviral AgentsImmunosuppressionStem Cell FactorAntifungal AgentsSurvival RateProspective StudiesHematologic DiseasesLeukemiaTransplantation ChimeraMultiple MyelomaSurvival AnalysisBusulfanGanciclovirBK VirusCombined Modality TherapyCord Blood Stem Cell TransplantationAcute DiseaseHepatic Veno-Occlusive DiseaseHerpesvirus 6, HumanLiving DonorsAntigens, CD34Polyomavirus InfectionsIncidenceTissue and Organ ProcurementFetal Tissue TransplantationCells, CulturedCell LineageAnemia, AplasticLymphoproliferative DisordersSalvage TherapyZygomycosisTacrolimusFlow CytometryStem Cell ResearchLeukemia, Myelogenous, Chronic, BCR-ABL PositiveHLA AntigensPrognosisBone Marrow CellsPlant StemsTransplantation ImmunologyAntineoplastic Combined Chemotherapy ProtocolsPrecursor Cell Lymphoblastic Leukemia-LymphomaWaiting ListsMyeloablative AgonistsFetal Stem CellsNeoplasmsInfectionVirus ActivationTriazolesBiological Markers