Heart TransplantationTransplantation, HeterotopicGraft RejectionTransplantation, HomologousGraft SurvivalRats, Inbred LewSkin TransplantationMyocardiumIsoantibodiesTransplantation ToleranceImmunosuppressive AgentsMice, Inbred C57BLMice, Inbred BALB CRats, Inbred WFImmunoconjugatesCyclosporineImmune ToleranceAllograftsMyocytes, CardiacT-LymphocytesKidney TransplantationGraft Enhancement, ImmunologicRats, Inbred ACITime FactorsHeartCardiac OutputTissue DonorsImmunosuppressionCoronary VesselsIsoantigensTransplantation, IsogeneicMice, Inbred C3HEndocardiumPostoperative ComplicationsBiopsyTransplantation ImmunologyLymphocyte Culture Test, MixedArrhythmias, CardiacCardiac Surgical ProceduresCoronary Artery DiseaseCD40 LigandVascular DiseasesDeath, Sudden, CardiacMice, KnockoutRats, Inbred BNCD4-Positive T-LymphocytesMice, Inbred CBAAcute DiseaseTreatment OutcomeAntibodies, MonoclonalDisease Models, AnimalCells, CulturedRNA, MessengerSpleenUltrasonography, InterventionalModels, AnimalFibrosisSirolimusCoronary DiseaseMice, Inbred StrainsCytokinesLeukemia Virus, MurineAustriaRetrospective StudiesMyocarditisMice, TransgenicBone TransplantationFollow-Up StudiesLymphocyte ActivationEchocardiography