1. Aaker, D. A. &Day, G. S. (1978). A guide to consumerism. In D. A. Aaker & G. S. Day (Eds.), Consumerism: Search for the consumer interest (3rd ed., pp. 2-18). New York: Free Press.
2. Aday, L. A, Andersen, R. & Fleming, G. V. (1980). Health care in the U.S.: Equitable for whom? Beverly Hills, CA: Sage.
3. Altman, L. K. & Rosenthal, E. (1990, February 18). Changes in medicine bring pain to healing profession. The New York Times, pp. 1, 20-21.
4. Research on Injuries in Biomedical Research