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Subjects
- United States 999
- Medicine 812
- Homeopathy 594
- American Civil War 475
- Physicians 455
- Materia Medica 339
- Philadelphia 339
- Military Personnel 336
- New York 333
- Physiological Phenomena 293
- Therapeutics 263
- Surgical Procedures, Operative 258
- New York City 256
- Hygiene 232
- Education, Medical 231
- Confederate States of America 230
- Phytotherapy 227
- Anatomy 225
- Clinical Medicine 218
- Confederate States of America. Army. 214
