1. For population trends in the United Sates, see U.S. Bureau of the Census, Statistical Abstract of the United States: 1990, 110th ed. (U.S. Government Printing Office, Washington, DC, 1990). For worldwide projections, see R.A. Butatao, World Population Projections: Short and Long Term Estimations (Johns Hopkins Press, Baltimore, MD, 1990).
2. For population trends in the United Sates, see U.S. Bureau of the Census, Statistical Abstract of the United States: 1990, 110th ed. (U.S. Government Printing Office, Washington, DC, 1990). For worldwide projections, see R.A. Butatao, World Population Projections: Short and Long Term Estimations (Johns Hopkins Press, Baltimore, MD, 1990).
3. F.J. Landy, M.S. Bland, E.R. Buskirk, R.E. Daley, R.F. DeBusk, E.J. Donovan, J.L. Farr, I. Feller, E.A. Fleishman, D.L. Gebhardt, J.L. Hodgonson, R.L. Kenney, J.R. Nesselroade, D.B. Pryor, P.B. Raven, K.W. Schaie, M.S. Sothmann, M.C. Taylor, R J. Vance, and S.H. Zarit, Alternatives to Chronological Age in Determining Standards for Suitability for Public Safety Jobs: Executive Summary (Center for Applied Behavioral Sciences, Pennsylvania State University, University Park, 1992).
4. The prevalence of dementia: A quantitative integration of the literature
5. A Study of Mild Dementia in the Community Using a Wide Range of Diagnostic Criteria