Filtering by: Creator United States. Department of Health, Education, and Welfare Remove constraint Creator: United States. Department of Health, Education, and Welfare Creator United States. Health Services Administration Remove constraint Creator: United States. Health Services Administration Collection PA Evaluation and Standardization Era (1973-1980) Remove constraint Collection: PA Evaluation and Standardization Era (1973-1980) Subject Nurse Practitioners -- supply & distribution Remove constraint Subject: Nurse Practitioners -- supply & distribution