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- Sanitation229
- Physiological Phenomena228
- Confederate States of America. Army224
- Surgical Procedures, Operative221
- Education, Medical214
- Jurisprudence211
- Pharmaceutical Preparations210
- Electric Stimulation Therapy199
- Societies, Medical -- organization & administration193
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- Public Health186
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- Anatomy175
- Societies, Medical164
- Pennsylvania160
- Water Supply155
- Equipment and Supplies154
- Clinical Medicine147
- Organization and Administration145