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World Health Organization ,  Candau, Marcolino Gomes ,  [The work of WHO, 1954: annual report of the Director-General to the World Health Assembly and to the United Nations]

World Health Organization ,  Candau, Marcolino Gomes ,  [The work of WHO, 1972: annual report of the Director-General to the World Health Assembly and to the United Nations]

Cross, R. M ,  Kaplan, Colin ,  McClean, D ,  World Health Organization ,  [Studies with dried and glycerinated smallpox vaccines of full and diminished potencies / by R.M. Cross and C. Kaplan & D. McLean [sic]]

Joint OIHP/WHO Study-Group on Smallpox ,  World Health Organization ,  [Summary report on the 2nd session of the Joint OIHP-WHO Study Group on Smallpox]

Joint OIHP/WHO Study-Group on Smallpox ,  World Health Organization ,  [Rapport sur la deuxième session du Groupe mixte d' experts OIHP-OMS de la variole]

Cross, R. M ,  Downie, A. W ,  Dumbell, Keith R ,  Kaplan, Colin ,  McClean, D ,  Payne, A. M.-M ,  Spicer, C. C ,  World Health Organization ,  [Laboratory and vaccination studies with dried smallpox vaccines : a report to the World Health Organization / W. Chas Cockburn ... [et al.] ; with a statistical note on the trial of smallpox vaccine / by C.C. Spicer, Statistical note on the trial of smallpox vaccine]

World Health Organization ,  [Production method of smallpox vaccine at the Michigan State Laboratories, Lansing, USA]

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, northern states of Nigeria]