Smallpox: clinical and epidemiologic features.
Henderson
D A
DA
Johns Hopkins University, Baltimore, MD, USA. dahzero@aol.com
D023482:Bioterrorism; D004196:Disease Outbreaks; D006801:Humans; D007114:Immunization; D012899:Smallpox / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control; D012900:Smallpox Vaccine / Q000009:adverse effects / Q000600:supply & distribution; D015022:Yugoslavia / Q000453:epidemiology
D012900:Smallpox Vaccine