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Lal, K. M ,  World Health Organization. Expert Committee on Smallpox. Meeting (1964 : Geneva, Switzerland) ,  [Planning, organization and execution of national smallpox eradication campaign in India : (to be presented to the WHO Expert Committee on Smallpox, Geneva - 14-20 January 1964) / by K.M. Lal]

Grant, F. C ,  World Health Organization. Expert Committee on Smallpox. Meeting (1964 : Geneva, Switzerland) ,  [Smallpox eradication programme in Ghana / by F.C. Grant]

Polak, M. F ,  World Health Organization. Expert Committee on Smallpox. Meeting (1964 : Geneva, Switzerland) ,  [Measures to be taken in case of outbreaks in countries free from smallpox / by M.F. Polak]

Lal, K. M ,  World Health Organization. Expert Committee on Smallpox. Meeting (1964 : Geneva, Switzerland) ,  [Planning, organization and execution of national smallpox eradication campaign in India : (to be presented to the WHO Expert Committee on Smallpox, Geneva - 14-20 January 1964) / by K.M. Lal]

Grant, F. C ,  World Health Organization. Expert Committee on Smallpox. Meeting (1964 : Geneva, Switzerland) ,  [Smallpox eradication programme in Ghana / by F.C. Grant]

Polak, M. F ,  World Health Organization. Expert Committee on Smallpox. Meeting (1964 : Geneva, Switzerland) ,  [Measures to be taken in case of outbreaks in countries free from smallpox / by M.F. Polak]