1. National health expenditures, 1991;Letsch;Health Care Finance Rev,1992
2. President Clinton's Health Care Reform Proposal,1993
3. The Health Security Act. Stock number 040-000-00634-6. Washington: US Government Printing Office; 1993.
4. Preliminary estimates from the 1990 Survey of Dental Services Rendered,1993
5. The 1990 Survey of Dental Fees,1992