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- Salts -- therapeutic use1
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- Scarlet Fever -- epidemiology1
- Schools1
- Scotland4
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- Simons, James, -1885.1
- Smallpox2
- Smallpox -- epidemiology2
- Smallpox -- prevention & control1
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- South Carolina -- epidemiology3
- Southeastern United States1
- Souza, Bentos de Carvalho é.1
- Spain1
- Spain -- epidemiology2