1. Politics, science, and dread disease;Strickland,1972
2. American Hospital Association. Table 12A-12B. In: Hospital statistics. Chicago, IL: American Hospital Association, 1980.
3. Board certified physicians in the United States, 1971–1986;Moore;N Engl J Med,1991
4. National health expenditures in 1997;Levit;Health Aff,1998
5. The coming clash;Lamm;Pharos,1998