Author/Creator
- United States898
- SpringerLink (Online service)674
- United States. Congress. House593
- Yale University. School of Public Health389
- Library of Congress. Congressional Research Service323
- United States. Public Health Service200
- United States. Congress. Senate193
- Infobase, film distributor168
- United States. Congress. House. Committee on Interstate and Foreign Commerce. (1892- 1981)153
- United States. Department of the Treasury142
- Clements C. Fry Collection of Medical Prints and Drawings (Yale Medical Library, Historical Library)119
- United States. Commissioners of the District of Columbia (1874-1967)100
- Infobase98
- Films for the Humanities & Sciences (Firm)97
- United States. Congress. Senate. Committee on Labor and Public Welfare. (1947-1977)94
- United States. Congress. Senate. Committee on the District of Columbia. (1816-1977)79
- United States. Congress. House. Committee on the District of Columbia. (1808- )78
- Yale University. Public Health77
- American Academy of Pediatrics (Firm)74
- Centers for Disease Control and Prevention (U.S.)65