1. EUCAN 1996. Cancer incidence, mortality and prevalence in the European Union. Disponible en: http://www.dep.iarc.fr/eucan/eucan.htm
2. Cancer incidence and mortality in Spain.;Miñarro,2000
3. The status of breast cancer screening: a quarter of century of research.;Shapiro;Worl J Surg,1989
4. Update of the swedish Two-County program of mammographic screening for breast cancer.;Tabar;Radiol Clin North Am,1992
5. NBSS1 Canadian National Breast Screening Study 1: breast cancer detection rates among women aged 40 to 49 years.;Miller;Can Med Assoc J,1992