1Romano S,Varveri A,Aurigemma G Dagianti A,et al.Usefulness of twodimensional(2D) echocardiography in early risk stratification during acute myocardial infarction[].Journal of the American College of Cardiology.1998
2Schiller NY,Shah PM. Crawford M,et al.Recommendations for quantitative of left ventricle by two- dimensional echocardiography[].Journal of the American Society of Echocardiography.1989
3Schechtman KB,Capone RJ,Kleiger re,et al.Risk stratification of patiens with non-Q-wave myocardiel infarction: the critical role of ST segment depression[].Circulation.1989
