Romano S, Varveri A, Aurigemma G, Dagianti A, Vitarelli A, Sciomer S, Pastore LR, Penco M, Dagianti A. Echocardiography in the coronary care unit: diagnostic and prognostic impact in comparison with clinical and other indicators. Am J Cardiol. 1998 Jun 18; 81(12A):13G-16G.