1. US Census Bureau. International database. Table 094. Midyear population, by age and sex. U.S. Census Bureau, Population Division, Population Projections Branch. 2004.
2. Sounding board: the illness as the focus of geriatric medicine;Williams;N Engl J Med,1983
3. Anonymous. Special focus. Healthy aging: preventing the diseases of aging. Chron Dis Notes Rep 1999;12. 1999. p. 1–4.
4. Projected numbers of cancers diagnosed in the US elderly population, 1990 through 2030;Polednak;Am J Public Health,1994
5. Rehabilitation of the geriatric patient;Clark,1993