[Electrocardiogram of the month].
D002637:Chest Pain / Q000150:complications / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006225:Hand; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis*; D014202:Tremor / Q000150:complications; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis