ECG of the month. The blank space. Sinoatrial node dysfunction;first- degree AV block.
J I
JI
Martinez-Lopez
D000368:Aged; D000553:Ambulatory Care; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008991:Monitoring, Physiologic