title: EKG of the month.
mesh_terms: D001022:Aortic Valve Insufficiency / Q000175:diagnosis*; D001024:Aortic Valve Stenosis / Q000175:diagnosis*; D006332:Cardiomegaly / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged