Duck and cover: a prudent defense against smallpox.
Marjorie K
MK
Jeffcoat
D023482:Bioterrorism / Q000517:prevention & control*; D003815:Dentists; D006801:Humans; D012899:Smallpox / Q000517:prevention & control*; D012900:Smallpox Vaccine; D014481:United States; D014611:Vaccination
D012900:Smallpox Vaccine