- Keen, William W. (William Williams), 1837-1932 author12
- California, enacting jurisdiction.11
- United States. Army. Chemical Warfare Service, author.11
- United States. Navy Department. Bureau of Medicine and Surgery, author, issuing body.11
- Armed Forces Medical Library (U.S.)10
- Charen, Thelma.10
- Illinois, enacting jurisdiction.10
- Keen, William W. (William Williams), 1837-193210
- National Library of Medicine (U.S.). Reference Services Division.10
- Pennsylvania. Department of Health, author.10
- Ward, Leslie, Sir, 1851-1922, artist10
- Brackett, Frederick S. (Frederick Sumner), 1896-1988, author9
- Coleman, Walter Moore, 1863-1926, author9
- Ohio. Department of Health. Adult Hygiene Division, author.9
- United States. Army Service Forces, author.9
- United States. Public Health Service, author.9
- United States. Public Health Service.9
- Mann, Wendell E., author8
- National Institutes of Health (U.S.)8
- National Library of Medicine (U.S.). Index Section.8