Gallop rhythm.
D000328:Adult; D001145:Arrhythmias, Cardiac; D002675:Child, Preschool; D004562:Electrocardiography; D005260:Female; D006326:Heart Auscultation; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D010701:Phonocardiography