1. Villar Álvarez F, Banegas Banegas JR, Donado Campos JM, Rodríguez Artalejo F. Cardiovascular diseases and its risk factors in Spain. The 2007 report for the Spanish Society of Atherosclerosis [citado 12 May 2011]. Disponible en: http://www.searteriosclerosis.org/web/contenidos/secciones/71/informe-sea-2007
2. Allender S, Scarborough P, Peto V, Rayner M, Leal L, Luengo-Fernandez R, et al. European Cardiovascular Disease Statistics 2008 [citado 12 May 2011]. Disponible en: http://www.ehnheart.org/content/SectionIntro.asp?level0=1457&docid=4345
3. Heart Disease and Stroke Statistics—2011 Update: A Report From the American Heart Association;Roger;Circulation,2011
4. Sick individuals and sick populations;Rose;Int J Epidemiol,2001
5. A dictionary of epidemiology. International Epidemiological Association;Porta,2008