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Robin, Y. ,  World Health Organization ,  [Epidemiological trends of certain arbovirus diseases - yellow fever in West and Central Africa : meeting of directors of WHO reference centres for arboviruses, chlamydiae and rickettsiae, Geneva, 1-5 April 1974]

Foege, W. H ,  Millar, J. D ,  Henderson, Donald A ,  World Health Organization ,  [L' éradication de la variole en Afrique occidentale et centrale / par William H. Foege, J.D. Millar et D.A. Henderson]

Robin, Y. ,  World Health Organization ,  [Epidemiological trends of certain arbovirus diseases - yellow fever in West and Central Africa : meeting of directors of WHO reference centres for arboviruses, chlamydiae and rickettsiae, Geneva, 1-5 April 1974]

Foege, W. H ,  Millar, J. D ,  Henderson, Donald A ,  World Health Organization ,  [L' éradication de la variole en Afrique occidentale et centrale / par William H. Foege, J.D. Millar et D.A. Henderson]