Bosch X, Casanovas N, Miranda-Guardiola F, Díez-Aja S, Sitges M, Anguera I et al. Long-term prognosis for women with non-ST segment elevation acute coronary syndrome. A study of cases and controls. Rev Esp Cardiol 2002;55:1235-42.

The study design was not of cases and controls as stated in the Methods section and the title, but a prospective, longitudinal study, with a study group and a control group paired according to age and a history of diabetes and arterial hypertension. Therefore, the study title should be: Long-term prognosis for women with non-ST segment elevation acute coronary syndrome.