1. 1. U. S. Congress , The Health Maintenance Organization Act of 1973, PL-93-222, S. 14, 93rd Congress, 1973 .
2. 2. U. S. Department of Health, Education, and Welfare , Health maintenance organization program status report. Public Health Services, Health Services Administration, Bureau of Medical Services, Division of Health Maintenance Organizations, Rockville, Maryland, 1975 .
3. 3. Telephone conversation with Office of HMO Qualification and Compliance, Rockville, Maryland, 1976 .
4. Standards for Dental Prepayment Programs
5. 5. R. L. Lindahl Issues in prepayment: a place for the closed panel. Presented at the 22nd National Dental Health Conference, Chicago, Illinois, 1971 .