842 resultados para Public health surveillance.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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"W.C. 39."
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Mode of access: Internet.
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Co-sponsored by: United States Public Health Service, American Veterinary Medical Association, Pan American Congress on Veterinary Medicine, and Association of Deans of American Veterinary Colleges.
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Mode of access: Internet.
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Winning essay in Poultry Disease Essay Contest, 1946.
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1953 ed., issued by Public Health Service, has title: Milk ordinance and code.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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WI docs no.: HE 1 CH.4:1926-1927
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Study made in a card-punch subsection of the Bureau of Internal Revenue.
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CIS Microfiche Accession Numbers: CIS 81 H181-66