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Subjects
- United States9,367
- Military Personnel1,464
- American Civil War1,444
- Medicine1,352
- United States. Army1,026
- Physicians888
- Homeopathy849
- New York848
- Regional Medical Programs779
- California747
- United States.718
- United States. Department of Health and Human Services685
- Hygiene661
- Government Regulation639
- World War II616
- Pennsylvania582
- Child555
- New York City551
- Philadelphia537
- United States. Food and Drug Administration537
