Department of Economic and Social Affairs Population Division.World population aging: 1950-2050. New York, United Nations2002.
2.
Kinsella K. and Wan He.An aging world: 2008. US Census Bureau, International Population Reports. 2009. http:www.census.gov/prod/2009pubs/p95-09-1 (Accessed October 2010).
3.
Perls T.Health and disease in people over 85. Despite disease, disability is low. Br Med J2009; 339: b4715.
4.
National Heart, Lung and Blood Institute.Incidence and prevalence: 2006 chart book on cardiovascular disease. 2006. http:www.nhlbi.nih.gov/resources/docs/06a_ip_chtbk.pdf (Accessed October 2010).
5.
Collerton J. , Davies K., Jagger C., Kingston A., Bond J., Eccles MP, et al. Health and disease in 85 year olds: baseline findings from the Newcastle 85+ cohort study. Br Med J2009; 339: b4904 (Accessed May 2010).
6.
Department of Health National Service Framework for older people, 2001. http//www.doh.gov.uk/nsf/olderpeople.htm (Accessed May 2010).
7.
Evans JGNational initiatives in aging research in the United Kingdom. Age Aging2002; 31: 93-95.