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Cockburn, W. Chas ,  Inter-Regional Seminar on methods of Epidemiological Surveillance (1970:Prague) ,  World Health Organization ,  [Surveillance of yellow fever / W. Chas. Cockburn]

Robin, Y. ,  WHO Expert Committee on Yellow Fever ,  World Health Organization ,  [WHO expert committee on yellow fever [meeting held in Entebbe from 9 to 15 March 1971] : methods of surveillance for yellow fever - serological studies in wild and sentinel animals]

Tukei, Peter M. ,  World Health Organization ,  [Yellow fever infection in East Africa : meeting of directors of WHO reference centres for arboviruses, chlamydiae and rickettsiae, Geneva, 1-5 April 1974]

Soper, Fred L. ,  World Health Organization ,  [Aedes aegypti and yellow fever: seminar on the ecology, biology, control and eradication of aedes aegypti, Geneva, 16-20 August 1965]