Smallpox in Twenty States, 1915-1920

Smallpox in Twenty States, 1915-1920

Force, John N., Leake, James P.
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Volume:
36
Year:
1921
Language:
english
Journal:
Public Health Reports (1896-1970)
DOI:
10.2307/4576092
File:
PDF, 919 KB
english, 1921
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