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Biodefense and Bioterrorism free resource MedlinePlus Health Information https://medlineplus.gov/biodefenseandbioterrorism.html
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free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/11880665/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/11880665