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Subjects
- United Kingdom5
- United States[remove]238
- United States Government Agencies -- history1
- United States Government Agencies -- legislation & jurisprudence1
- United States Naval Observatory.1
- United States.1
- United States. Army3
- United States. Army.1
- United States. Army. Medical Department1
- United States. Army. Medical Department.5
- United States. Marine Hospital Service.1
- United States. Navy Department. Bureau of Medicine and Surgery.1
- United States. Navy Department. Medical Service Corps.2
- United States. Navy.1
- United States. War Department.2
- United States. War Department. Subsistence Department.1
- University of Pennsylvania. Department of Medicine.1
- Urban Population3
- Uterus -- surgery1