title: Cardiac pacing and pacemaker. III. Sensing the cardiac electrogram.
mesh_terms: D006328:Cardiac Catheterization; D004562:Electrocardiography; D004699:Endocardium / Q000503:physiopathology; D006321:Heart / Q000503:physiopathology*; D006325:Heart Atria / Q000503:physiopathology; D006352:Heart Ventricles / Q000503:physiopathology; D010138:Pacemaker, Artificial; D012119:Respiration