Organ TransplantationTissue DonorsKidney TransplantationHeart TransplantationTransplantsLiver TransplantationTransplantationGraft RejectionTissue and Organ ProcurementImmunosuppressive AgentsImmunocompromised HostLung TransplantationGraft SurvivalTransplantation, HomologousTransplantation ImmunologyCytomegalovirus InfectionsImmunosuppressionLymphoproliferative DisordersPostoperative ComplicationsGanciclovirOpportunistic InfectionsTacrolimusCyclosporineCytomegalovirusBrain DeathPancreas TransplantationTransplantation ToleranceTreatment OutcomeFacial TransplantationTime FactorsMycophenolic AcidRetrospective StudiesLiving DonorsSkin NeoplasmsBone Marrow TransplantationHeart-Lung TransplantationMycosesEyebrowsCryptococcosisCadaverWaiting ListsKeratosis, ActinicZygomycosisAntiviral AgentsHistocompatibility TestingRisk FactorsAntifungal AgentsHematopoietic Stem Cell TransplantationMarital TherapyDeathCalcineurinMultiple Organ FailureFatal OutcomeAcitretinHerpesvirus 4, HumanIncidenceSeromaAspergillosisEpstein-Barr Virus InfectionsSunscreening AgentsFollow-Up StudiesOrgan SizeCohort StudiesHerpesvirus 7, HumanKidneyProspective StudiesOrgan SpecificityT-LymphocytesHerpesvirus 6, HumanHLA AntigensOrgan of CortiImmune TolerancePolymerase Chain ReactionCoccidioidomycosisHerpesviridae InfectionsMice, Inbred C57BLLiver DiseasesGraft vs Host DiseaseImmunocompetencePennsylvaniaSurvival RateSirolimusLiver FailureDNA, ViralViremiaUnited StatesSunlightViral LoadKidney Failure, ChronicTumor Virus InfectionsCarcinoma, Squamous CellViral Matrix ProteinsTissue and Organ HarvestingFetal Tissue TransplantationMicrosporidiosisMice, Inbred BALB CRegistriesAntibodies, ViralIsoantibodiesPrognosis