POLIOMYELITIS IN EGYPT: EFFICACY OF MASS CAMPAIGNS

-д хадгалсан:
IBRAHIM, S.S., POLIOMYELITIS IN EGYPT: EFFICACY OF MASS CAMPAIGNS. INTERNATIONAL DISABILITY STUDIES, Vol. 11, no. 4 (1989), p. 171-174.
Ref. 18477
Байршил: SIIS R.831
Palabras clave:
Campañas de prevención, Inmunización, Poliomielitis, Egipto

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