Task Force I: Standardization of terminology and interpretation - Surawicz, B; Uhley, H; Borun, R; Laks, M; Crevasse, L; Rosen, K; Nelson, W; Mandel, W; Lawrence, P; Jackson, L; Flowers, N; Clifton, J; Greenfield, J; Robles de Medina, EO (Am J Cardiol, 1978)