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Subjects
- United States14
- Disease Outbreaks4
- Climate2
- Europe2
- Pharmaceutical Preparations2
- Physicians2
- Agriculture1
- Ambulances1
- American Revolution1
- Billings, John S. (John Shaw), 1838-1913.1
- Communicable Diseases1
- Diagnosis1
- Disease1
- Egypt1
- Geological Phenomena1
- Haygarth, John, 1740-1827.1
- Hospital Units1
- Hospitals1
- Hospitals, Military1
- Materia Medica1