title: The atrial contribution to the left ventricular apexcardiogram.
mesh_terms: D000368:Aged; D003327:Coronary Disease / Q000628:therapy; D004562:Electrocardiography; D006321:Heart / Q000503:physiopathology*; D006325:Heart Atria / Q000503:physiopathology; D006327:Heart Block / Q000628:therapy; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D007702:Kinetocardiography; D008297:Male; D010138:Pacemaker, Artificial; D010701:Phonocardiography; D014693:Ventricular Fibrillation / Q000175:diagnosis