title: Electrocardiogram of the Month.
mesh_terms: D004562:Electrocardiography; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications / Q000175:diagnosis*; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000209:etiology; D011660:Pulmonary Heart Disease / Q000150:complications / Q000175:diagnosis*; D014672:Vectorcardiography