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Subjects
- Medicine77
- Disease Outbreaks70
- Yellow Fever61
- Disease33
- Medicine, Traditional32
- Pharmaceutical Preparations32
- London30
- Philadelphia30
- Philadelphia -- epidemiology29
- Materia Medica28
- Mexico28
- Mortality21
- United States21
- Anatomy17
- Military Medicine16
- Cooking15
- Massachusetts15
- Midwifery15
- Smallpox -- prevention & control15
- England14