No abstract available
MeSH terms
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Bioterrorism*
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Health Policy*
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Humans
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Immunization Programs*
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Smallpox / immunology
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Smallpox / prevention & control*
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Smallpox Vaccine / administration & dosage*
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Smallpox Vaccine / adverse effects
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Smallpox Vaccine / immunology
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United States
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Vaccination
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Voluntary Programs*