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Subjects
- United States2,626
- American Civil War1,497
- Physicians1,221
- Medicine1,215
- Military Personnel1,172
- United States. Army991
- Homeopathy869
- Nonprescription Drugs741
- New York641
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- Philadelphia492
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- Child435
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- Physiological Phenomena419
- Anatomy389
- Cholera389
- Therapeutics379
- Surgical Procedures, Operative367
