Smallpox eradication--a cold war victory.
Henderson
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Johns Hopkins School of Hygiene and Public Health, Baltimore, Maryland 21218, USA.
D049673:History, 20th Century; D006801:Humans; D017589:Immunization Programs / Q000266:history* / Q000458:organization & administration; D007391:International Cooperation; D012899:Smallpox / Q000266:history* / Q000517:prevention & control; D012900:Smallpox Vaccine / Q000266:history*; D014944:World Health Organization / Q000266:history
D012900:Smallpox Vaccine