A prospective study on the time elapsed until admission at the coronary unit of patients with acute myocardial infarct. Apropos of 180 cases - Landa Goñi J; García de Blas F; Sánchez Ludeña M; Núñez Reiz A; Palacios Martínez J; Morales Cano J (Medicina Clinica, 1990)