Kidney TransplantationTissue and Organ ProcurementGraft RejectionTissue DonorsLiver TransplantationTransplantationOrgan TransplantationGraft SurvivalLiving DonorsTransplantsImmunosuppressive AgentsHeart TransplantationLung TransplantationTransplantation, HomologousWaiting ListsLiver FailureRetrospective StudiesTreatment OutcomePostoperative ComplicationsCytomegalovirus InfectionsDonor SelectionCadaverTime FactorsBone Marrow TransplantationTacrolimusHospitals, SpecialCyclosporineKidney Failure, ChronicDirected Tissue DonationPancreas TransplantationHistocompatibility TestingImmunosuppressionHematopoietic Stem Cell TransplantationMycophenolic AcidImmunocompromised HostRisk FactorsEnd Stage Liver DiseaseFollow-Up StudiesUnited StatesLiver DiseasesSurvival RateTransplantation ImmunologySurvival AnalysisHeart-Lung TransplantationCytomegalovirusGraft vs Host DiseasePatient SelectionProspective StudiesBronchiolitis ObliteransIncidenceBK VirusOpportunistic InfectionsGanciclovirTissue and Organ HarvestingRegistriesPolyomavirus InfectionsRecurrenceCohort StudiesTransplantation, AutologousMycosesLymphoproliferative DisordersMultivariate AnalysisPostoperative CareRisk AssessmentAntiviral AgentsBiopsyIsoantibodiesPrognosisProportional Hazards ModelsAntilymphocyte SerumCreatinineKidneySirolimusPostoperative PeriodKidney DiseasesCalcineurinTransplantation ToleranceHLA AntigensFatal OutcomeHistocompatibilityMedicareFetal Tissue TransplantationAspergillosisDrug Therapy, CombinationAntifungal AgentsTransplantation, HeterotopicPrimary Graft DysfunctionSeverity of Illness IndexAcute DiseaseGlomerular Filtration RateInfectionDrug MonitoringAzathioprinePolymerase Chain ReactionHematologic NeoplasmsTransplantation ConditioningRenal InsufficiencyKaplan-Meier EstimateKidney Function TestsIslets of Langerhans Transplantation