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Subjects
- Disease Outbreaks70
- Yellow Fever64
- Medicine61
- Disease30
- Philadelphia30
- Philadelphia -- epidemiology30
- Mexico29
- Medicine, Traditional26
- Materia Medica25
- Mortality23
- United States21
- Massachusetts15
- Military Medicine14
- Smallpox -- prevention & control14
- Resuscitation13
- Animal Husbandry12
- Charities11
- Forecasting11
- Midwifery11
- Equipment and Supplies10