Organ TransplantationKidney TransplantationTransplantsTransplantationGraft RejectionTissue DonorsImmunosuppressive AgentsHeart TransplantationLung TransplantationGraft SurvivalImmunocompromised HostLiver TransplantationTransplantation, HomologousCytomegalovirus InfectionsTissue and Organ ProcurementLiving DonorsImmunosuppressionTacrolimusPostoperative ComplicationsCyclosporineTransplantation ImmunologyMycophenolic AcidOpportunistic InfectionsGanciclovirLymphoproliferative DisordersRetrospective StudiesCytomegalovirusTreatment OutcomeBone Marrow TransplantationTime FactorsHeart-Lung TransplantationPancreas TransplantationMycosesCadaverWaiting ListsHistocompatibility TestingTransplantation ToleranceRisk FactorsHematopoietic Stem Cell TransplantationAntiviral AgentsBrain DeathBlood DonorsSkin NeoplasmsFollow-Up StudiesBronchiolitis ObliteransBK VirusAntifungal AgentsFacial TransplantationLiver FailureCalcineurinZygomycosisKidney Failure, ChronicIncidenceCryptococcosisProspective StudiesFatal OutcomeAspergillosisGraft vs Host DiseasePolyomavirus InfectionsEyebrowsSirolimusKeratosis, ActinicKidneyHLA AntigensCohort StudiesEpstein-Barr Virus InfectionsLiver DiseasesSurvival RateDeathPolymerase Chain ReactionHerpesvirus 6, HumanHerpesvirus 4, HumanIsoantibodiesBiopsyHerpesvirus 7, HumanAntilymphocyte SerumDrug Therapy, CombinationAcitretinCreatinineViremiaHistocompatibilityMarital TherapyDNA, ViralT-LymphocytesPostoperative PeriodRecurrenceHerpesviridae InfectionsKidney DiseasesViral LoadTumor Virus InfectionsSurvival AnalysisFetal Tissue TransplantationImmunocompetenceImmune ToleranceTransplantation, HeterotopicPrognosisSunscreening AgentsUnited StatesRegistriesPrimary Graft Dysfunction