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Communicable Disease Control
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14
Internationality
5
Scarlet Fever -- prevention & control
4
Congresses as Topic
3
Michigan
3
Smallpox -- prevention & control
2
Boston
1
Cremation
1
Quarantine -- legislation & jurisprudence
1
Sanitation
1
Ships -- legislation & jurisprudence
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United Kingdom
1
Vital Statistics
1