Clinical ECG observations on intra-atrial pacemakers and their conduction.
D000368:Aged; D001145:Arrhythmias, Cardiac / Q000175:diagnosis; D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000503:physiopathology; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged