MyocarditisCoxsackievirus InfectionsEnterovirus B, HumanAcute DiseaseCytochromes c'Enterovirus InfectionsEdema, CardiacMyocardiumCardiomyopathy, DilatedEnterovirusShock, CardiogenicChagas CardiomyopathyPericarditisBiopsyGadoliniumHeartElectrocardiographyEchocardiographyPore Forming Cytotoxic ProteinsPulmonary Wedge PressurePerforinMice, Inbred C3HAutoimmune DiseasesVentricular Function, LeftMagnetic Resonance ImagingHeart VentriclesDisease Models, AnimalMyocardial InfarctionMembrane GlycoproteinsCardiovirus InfectionsEncephalomyocarditis virus