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World Health Organization ,  Inter-Regional Seminar on Smallpox Eradication (1969 : Lagos, Nigeria) ,  [Rapport sur la variole]

World Health Organization ,  Inter-Regional Seminar on Smallpox Eradication (1969 : Lagos, Nigeria) ,  [Country report : country, northern states of Nigeria]

World Health Organization ,  Inter-Regional Seminar on Smallpox Eradication (1969 : Lagos, Nigeria) ,  [Country report]

World Health Organization ,  Inter-Regional Seminar on Smallpox Eradication (1969 : Lagos, Nigeria) ,  [Country report : country, Upper Volta]

World Health Organization ,  Inter-Regional Seminar on Smallpox Eradication (1969 : Lagos, Nigeria) ,  [Country report]

World Health Organization ,  [Programme national d' éradication de la variole : rapport d' enquête]

World Health Organization ,  [National smallpox eradication program : field assessment report]

World Health Organization ,  World Health Organization. Global Commission for the Certification of Smallpox Eradication ,  [Smallpox eradication in the Republic of Djibouti : status report, 13 November 1978]

Yunnan (China). Dept. of Health ,  World Health Organization ,  [Special report on smallpox and its eradication in Yunnan Province, China]

Children's Vaccine Initiative ,  [Proposed CVI Secretariat plan of activities and budget for 1996]