title: Comparison of action potentials from endocardial and epicardial surfaces of frog ventricle.
mesh_terms: D000200:Action Potentials; D000818:Animals; D001001:Anura; D004562:Electrocardiography; D004699:Endocardium / Q000502:physiology*; D006321:Heart / Q000502:physiology*; D010496:Pericardium / Q000502:physiology*; D016276:Ventricular Function