Éradication de la variole : destruction des stocks de virus variolique: Rapport du Secrétariat
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The combined use of the viruses of yellow fever and vaccinia by the scratch method for immunization against yellow fever and smallpox Stuart, G; World Health Organization; WHO Expert Committee on Yellow Fever (WHO/YF/21, 1953)
Management of suspected cases of smallpox in the post-eradication period / [prepared by the Smallpox Eradication Unit, WHO HQ, Geneva] World Health Organization. Smallpox Eradication Unit (WHO/SE/80.157 Rev.1, 1980)