title: Ekg of the month.
mesh_terms: D000790:Angiocardiography; D006328:Cardiac Catheterization; D006332:Cardiomegaly / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D007223:Infant; D008297:Male; D009203:Myocardial Infarction / Q000175:diagnosis*; D013610:Tachycardia / Q000175:diagnosis