1. Características y retos del envejecimiento de la población: La perspectiva europea;Zaidi;European Centre for Social Welfare Policy and Research: Policy Brief Marzo,2008
2. Population ageing and health;Lloyd-Sherlock;Lancet,2012
3. The frailty index in Europeans: Association with age and mortality;Romero-Ortuno;Age Ageing,2012
4. A frailty instrument for primary care: Findings from the Survey of Health. Ageing and Retirement in Europe (SHARE);Romero-Ortuno;BMC Geriatr,2010
5. Age-related geriatric medicine: Relevance of special skills of geriatric medicine to elderly people admitted to hospital as medical emergencies;Kafetz;J R Soc Med,1995