title: The tall R wave in the right precordial leads.
mesh_terms: D006332:Cardiomegaly / Q000175:diagnosis*; D003951:Diagnostic Errors; D004562:Electrocardiography / Q000379:methods*; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis; D014672:Vectorcardiography