Organ TransplantationTransplantsTissue and Organ ProcurementTransplantationKidney TransplantationGraft RejectionImmunosuppressive AgentsImmunocompromised HostHeart TransplantationLung TransplantationTissue DonorsOrgan SpecificityTransplantation ImmunologyCytomegalovirus InfectionsImmunosuppressionGraft SurvivalLymphoproliferative DisordersTransplantation, HomologousLiver TransplantationPostoperative ComplicationsTransplantation, HeterologousGanciclovirOpportunistic InfectionsKidneyBrain DeathFacial TransplantationTissue DistributionCytomegalovirusTacrolimusCyclosporineOrgan Culture TechniquesSkin NeoplasmsTransplantation TolerancePancreas TransplantationMycophenolic AcidTreatment OutcomeEyebrowsRetrospective StudiesCryptococcosisKeratosis, ActinicTime FactorsSwineMycosesZygomycosisHeart-Lung TransplantationWaiting ListsLiving DonorsGene Expression ProfilingImmunohistochemistryAntiviral AgentsCadaverMarital TherapyBone Marrow TransplantationAntifungal AgentsRNA, MessengerMolecular Sequence DataRisk FactorsSeromaMultiple Organ FailureDeathAcitretinCalcineurinSunscreening AgentsHerpesvirus 4, HumanHistocompatibility TestingFatal OutcomeOrgan SizeEpstein-Barr Virus InfectionsAspergillosisOrgan of CortiHerpesvirus 7, HumanIncidenceHematopoietic Stem Cell TransplantationCoccidioidomycosisCohort StudiesHerpesvirus 6, HumanHerpesviridae InfectionsFollow-Up StudiesPennsylvaniaProspective StudiesImmunocompetencePolymerase Chain ReactionHLA AntigensLiver DiseasesSunlightImmune ToleranceSirolimusCarcinoma, Squamous CellMicrosporidiosisT-LymphocytesSurvival RateViral Matrix ProteinsViremiaDNA, ViralTumor Virus InfectionsViral LoadUnited StatesFetal Tissue TransplantationRegistriesMice, Inbred C57BL