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World Health Organization ,  Centers for Disease Control (U.S.) ,  [Methods for surveillance and monitoring of congenital syphilis elimination within existing systems, Méthodes pour la surveillance et le suivi de l'élimination de la syphilis congénitale dans le cadre des systèmes existants]

Study Group on Orthopoxvirus Research. Meeting (1979 : Atlanta, Ga.) ,  World Health Organization. Smallpox Eradication Unit ,  Centers for Disease Control (U.S.) ,  [Report of meeting of the Study Group on Orthopoxvirus Research, Atlanta, 26-28 June 1979 / (co-sponsored by WHO and CDC)]

World Health Organization ,  Centers for Disease Control (U.S.) ,  [Methods for surveillance and monitoring of congenital syphilis elimination within existing systems, Méthodes pour la surveillance et le suivi de l'élimination de la syphilis congénitale dans le cadre des systèmes existants]

Study Group on Orthopoxvirus Research. Meeting (1979 : Atlanta, Ga.) ,  World Health Organization. Smallpox Eradication Unit ,  Centers for Disease Control (U.S.) ,  [Report of meeting of the Study Group on Orthopoxvirus Research, Atlanta, 26-28 June 1979 / (co-sponsored by WHO and CDC)]