A computer derived protocol to aid in the diagnosis of emergency room patients with acute chest pain - Goldman, L; Weinberg, M; Weisberg, M; Olshen, R; Cook, E. F; Sargent, R. K; Lamas, G. A; Dennis, C; Wilson, C; Deckelbaum, L; Fineberg, H; Stiratelli, R (New Engl. J. Med, 1982)