1. The Future of Immunization;Edsall;Pub. Health Rep.,1961
2. Simon, J. L., and Riley, H. D., Jr.: Levels of Immunization in a Children’s Hospital Outpatient Clinic. In preparation.
3. Ward, J.: University of Oklahoma, Oklahoma City, Oklahoma: Personal communication.
4. Immunization and Tuberculin-Testing Status of Certain Selected Families;Meyer;New England J. Med.,1961
5. Data at Oklahoma State Department of Health, Oklahoma City, Oklahoma.