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Authors
- Minneapolis (Minn.). Health Department, author.1
- Minnesota. Division of Public Health Education, compiler.1
- Mississippi. State Board of Health. Library, author.1
- New York (State). Department of Health, author.2
- North Dakota. State Department of Health, author.1
- United States. Army-Navy Medical Procurement Office, author.1
- United States. Army. Medical Department.1
- United States. Navy Department. Bureau of Medicine and Surgery, author.2
- United States. Surgeon-General's Office, author.1
- United States. War Department, author.1