Organ TransplantationKidney TransplantationLiver TransplantationTransplantation ImmunologyHeart TransplantationTissue DonorsTransplantationGraft RejectionImmunosuppressive AgentsLung TransplantationTransplantsTransplantation, HomologousLymphoproliferative DisordersGraft SurvivalTransplantation ToleranceImmunosuppressionTissue and Organ ProcurementPancreas TransplantationTacrolimusCyclosporineBone Marrow TransplantationMycophenolic AcidCytomegalovirus InfectionsPostoperative ComplicationsImmunocompromised HostTreatment OutcomeLiving DonorsHematopoietic Stem Cell TransplantationRetrospective StudiesCytomegalovirusCalcineurinEpstein-Barr Virus InfectionsBrain DeathTime FactorsImmune ToleranceGanciclovirTransplantation, AutologousGraft vs Host DiseaseStem Cell TransplantationHeart-Lung TransplantationTransplantation ConditioningAntiviral AgentsTransplantation ChimeraRisk FactorsCadaverHerpesvirus 4, HumanIslets of Langerhans TransplantationWaiting ListsT-LymphocytesOrgan PreservationBlood DonorsSkin TransplantationHistocompatibility TestingCell TransplantationIncidenceFollow-Up StudiesAntibodies, MonoclonalTissue TransplantationTransplantation, HeterotopicTransplantation, IsogeneicPrognosisDonor SelectionLiver FailureCorneal TransplantationAntilymphocyte SerumHistocompatibilityTissue and Organ HarvestingChimerismMedical TourismHLA AntigensIsoantibodiesRats, Inbred LewOpportunistic InfectionsTransplantation, HeterologousCord Blood Stem Cell TransplantationIsoantigensRecurrenceLiver DiseasesFatal OutcomeSurvival RateMice, Inbred C57BLBlood Group IncompatibilityKidneyLiverHost vs Graft ReactionOrgan Preservation SolutionsAzathioprineSurvival AnalysisPeripheral Blood Stem Cell TransplantationFetal Tissue TransplantationUnited States Health Resources and Services AdministrationChimeraIslamKidney Failure, ChronicBlood TransfusionSirolimusHand TransplantationCold IschemiaNeoplasmsReperfusion Injury