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- National Foundation for Infantile Paralysis30
- United States18
- United States. Congress. House10
- Kenny, Elizabeth, 1886-19528
- United States. Congress. House. Committee on Interstate and Foreign Commerce8
- ebrary, Inc8
- Frost, Wade Hampton, 1880-19387
- Paul, John R. (John Rodman), 1893-19717
- Clements C. Fry Collection of Medical Prints and Drawings (Yale Medical Library, Historical Library)6
- National Foundation6
- Project Muse6
- United States. Department of the Treasury6
- United States. Public Health Service6
- Wickman, Ivar, 1872-19146
- United States. Congress. Senate. Committee on Labor and Public Welfare. (1947-1977)5
- Wilson, Daniel J., 1949-5
- Akademii︠a︡ medit︠s︡inskikh nauk SSSR4
- Berg, Roland H., 1908-4
- Buffalo (N.Y.). Dept. of Health4
- Draper, George, 1880-4