1. Crossing frontiers: Gerontology emerges as a science;Achenbaum,1995
2. Equity of access to medical care—A conceptual and empirical overview;Aday;Medical Care,1981
3. Health care in the US: Equitable for whom?;Aday,1980
4. Infant mortality and related issues;Ahmed,1994
5. Evidence for decline in disability and improved health among persons aged 55 to 70 Years: The Framingham Heart Study;Allaire;American Journal of Public Health,1999