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Subjects
- Blood Specimen Collection1
- Colonialism -- history1
- Communicable Disease Control -- history1
- Cuba1
- Elephantiasis, Filarial -- prevention & control1
- Elephantiasis, Filarial -- therapy1
- Expeditions1
- History of Medicine1
- History, 19th Century1
- History, 20th Century1
- Sudan1
- United States1
- Yellow Fever -- epidemiology1
- Yellow Fever -- history1
- Yellow Fever -- transmission1