1. Dental manpower resources in the United States;Johnson;Am J Public Health,1969
2. Experimental program in expanded functions for dental assistants: phase 1 base line and phase 2 training;Lotzkar;JADA,1971
3. 1968 Survey of dental practice VIII. Dentist busyness;JADA,1969
4. National health insurance: a comparison of five proposals;Waldman,1970
5. Facts about nursing. A statistical summary,1969