912 resultados para health diseases


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Reprint no. 1697 from the Public Health reports (revised 1945).

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Bibliography: p. 27-40.

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Mode of access: Internet.

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Sponsored by the National Pork Producers Council, University of Illinois Cooperative Extension Service, Federal Extension Service, Agricultural Research Service of U. S. Department of Agriculture.

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Winning essay in Poultry Disease Essay Contest, 1946.