Electrocardiogram of the month.
D000015:Abnormalities, Multiple; D000328:Adult; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis; D006801:Humans; D008297:Male; D011651:Pulmonary Artery / Q000002:abnormalities*; D013771:Tetralogy of Fallot / Q000175:diagnosis*