1. Foundations of epidemiology;Lilienfeld,1976
2. National health expenditures, 1980;Gibson;Health Care Financing Review,1981
3. Public policy options for better dental health;Institute of Medicine,1980
4. Epidemiology and public health aspects of caries and periodontal disease;Greene;J Dent Res (Special Issue C),1977
5. Influences for change in the dental health status of populations: a historical perspective;Burt;J Public Health Dent,1978