http://www.pork.org/PorkScience/Documents/PUBLICHEALTH%20influenza.pdf
Text about the influenza A virus, its subtypes and interspecies transmission. Document from 2004.
Autor(es): Olsen, Christopher W Creador(es): National Pork Board
Recursos añadido en:
04/05/2009
Idiomas disponibles:
Inglés
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