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Subjects
- Ulcer2
- United States1
- United Kingdom17
- United States206
- United States -- epidemiology3
- United States Government Agencies1
- United States Institution for the Cure of Impediments of Speech.1
- United States Military Academy.2
- United States Virgin Islands1
- United States. Army1
- United States. Army.3
- United States. Army. Medical Department.1
- United States. Navy Department Bureau of Medicine and Surgery.1
- United States. Navy.7
- United States. Navy. Medical Department1
- Universities8
- Universities -- history2
- Universities -- legislation & jurisprudence1
- Universities -- organization & administration6
- University of Maryland (1812-1920). Medical Department.1