Kidney TransplantationOrgan TransplantationImmunosuppressive AgentsGraft RejectionTacrolimusTransplantsCyclosporineMycophenolic AcidGraft SurvivalTransplantationBK VirusKidneyPolyomavirus InfectionsImmunosuppressionTransplantation, HomologousTissue DonorsHeart TransplantationPostoperative ComplicationsLiver TransplantationKidney Failure, ChronicKidney DiseasesLung TransplantationImmunocompromised HostTime FactorsTissue and Organ ProcurementQ-SortRetrospective StudiesTreatment OutcomeAntilymphocyte SerumCytomegalovirus InfectionsCalcineurinRisk FactorsTransplantation ImmunologyDrug MonitoringLiving DonorsFollow-Up StudiesPancreas TransplantationSirolimusProspective StudiesCreatinineWaiting ListsSunlightLymphoproliferative DisordersGlomerular Filtration RateCadaverDrug Therapy, CombinationBiopsyIncidenceGanciclovirCytomegalovirusHistocompatibility TestingBiological MarkersBone Marrow TransplantationOpportunistic InfectionsBrain DeathHeart-Lung TransplantationTransplantation ToleranceMycosesAntiviral AgentsDelayed Graft FunctionKidney Function TestsIsoantibodiesSkin NeoplasmsFacial TransplantationHLA AntigensRenal DialysisCohort StudiesHematopoietic Stem Cell TransplantationAntifungal AgentsCyclosporinsTablets, Enteric-CoatedSurvival RateDirected Tissue DonationKidney TubulesDeathFatal OutcomePostoperative PeriodPrimary Graft DysfunctionBronchiolitis ObliteransAzathioprineCryptococcosisEyebrowsLiver FailureGingival OvergrowthRenal InsufficiencySeromaKeratosis, ActinicPrognosisZygomycosisAcute Kidney InjuryEpstein-Barr Virus InfectionsHerpesvirus 4, HumanAspergillosisPolymerase Chain ReactionTumor Virus InfectionsRegistriesHerpesviridae InfectionsIranUnited StatesHerpesvirus 6, Human