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

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

Shrestha, Purushottam Narayan ,  World Health Organization ,  [Smallpox eradication in Nepal / by P.N. Shrestha]

Children's Vaccine Initiative. Task Force on Situation Analysis ,  World Health Organization ,  United Nations Development Programme ,  Rockefeller Foundation ,  World Bank ,  United Nations Children's Fund (‎UNICEF)‎ ,  [Situation analysis : Thailand : 23-29 April 1996 / Children's Vaccine Initiative]

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

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

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

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

Rao, A. R. (Ayyagari Ramachandra) ,  World Health Organization ,  [La vaccination des malades hospitalisés et des nouveau-nés : contre-indication de la vaccination / par A. Ramachandra Rao]

Shafa, E ,  World Health Organization ,  [Matériel et techniques de vaccination contre la variole / par E. Shafa]