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Smallpox in Sierra Leone

I. Epidemiology

Donald R. Hopkins, J. Michael Lane, Evelyn C. Cummings, and J. Donald Millar
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Smallpox in Sierra Leone

II. The 1968–69 Eradication Program

Donald R. Hopkins, J. Michael Lane, Evelyn C. Cummings, James N. Thornton, and J. Donald Millar
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