1. Ruiz-Ramos M, Escolar-Pujolar A, Mayoral-Sanchez E, Corral-San Laureano F, Fernandez-Fernandezc I: [Mellitus diabetes in Spain: death rates, prevalence, impact, costs and inequalities.] Gac Sanit 20(Suppl. 1):15–24, 2006 [article in Spanish]
2. U.S. Department of Health and Human Services: Healthy People 2010 [article online]. Washington, DC, U.S. Department of Health and Human Services. Available from http://www.health.gov/healthypeople. Accessed 18 July 2007
3. Hennessy CH, Moriarty DG, Zack MM, Scherr PA, Brackbill R Measuring health-related quality of life for public health surveillance. Public Health Rep 109:665–672, 1994
4. Ministerio de Sanidad y Consumo de España: Otras Encuestas Nacionales de Salud [article online]. Madrid, Ministerio de Sanidad y Consumo de España. Available from http://www.msc.es/estadEstudios/estadisticas/encuestaNacional/aniosAnteriores.htm. Accessed 25 June 2007 [article in Spanish]
5. Instituto Nacional de Estadística: Spanish National Health Survey 2003 [article online]. Madrid, Instituto Nacional de Estadística. Available from http://www.ine.es/en/metodologia/t15/t1530419_en.pdf). Accessed 25 June 2007