Value of a new eletrocardiographic index, as a predictive figure of response to stress testing in chronic aortic insufficiency - Alfieri, R. G.; Chalela, W. A.; Moffa, Paulo Jorge; Del Nero Júnior, E; Tarasoutchi, F.; Grinberg, M.; Bellotti, Giovanni; Pileggi, F (World Congress of Cardiology, 1986)