Kidney TransplantationGraft RejectionImmunosuppressive AgentsGraft SurvivalKidneyTacrolimusTransplantationMycophenolic AcidTissue DonorsCyclosporineBK VirusKidney DiseasesKidney Failure, ChronicLiver TransplantationTransplantation, HomologousImmunosuppressionLiving DonorsPolyomavirus InfectionsDelayed Graft FunctionTime FactorsOrgan TransplantationTreatment OutcomeRetrospective StudiesPostoperative ComplicationsTransplantsCytomegalovirus InfectionsHeart TransplantationPancreas TransplantationCadaverLung TransplantationGlomerular Filtration RateAntilymphocyte SerumImmunocompromised HostRisk FactorsCreatinineTissue and Organ ProcurementKidney Function TestsLiver DiseasesFollow-Up StudiesWaiting ListsIranHistocompatibility TestingSirolimusAzathioprineCalcineurinIsoantibodiesPrimary Graft DysfunctionLiverBiopsyDrug MonitoringProspective StudiesCytomegalovirusKidney TubulesTransplantation ImmunologyGanciclovirDrug SubstitutionRenal InsufficiencyHLA AntigensIncidenceComplement C4bRenal DialysisDrug Therapy, CombinationDonor SelectionCohort StudiesLiver NeoplasmsProportional Hazards ModelsLiver CirrhosisAcute Kidney InjurySurvival RateTablets, Enteric-CoatedBiological MarkersGingival HyperplasiaBone Marrow TransplantationLymphoproliferative DisordersAntiviral AgentsKidney CortexTranscultural NursingPostoperative PeriodChi-Square DistributionKaplan-Meier EstimateMultivariate AnalysisRisk AssessmentFatal OutcomeTumor Virus InfectionsGingival OvergrowthSurvival AnalysisPrognosisIMP DehydrogenaseHeart-Lung TransplantationProteinuriaInfectionAcute DiseasePrednisoneAdrenal Cortex HormonesOpportunistic InfectionsPorphyromonasKidney NeoplasmsBronchiolitis ObliteransRecurrenceDirected Tissue Donation