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World Health Organization. Diarrhoeal Disease Control Programme ,  [Development of vaccines against shigellosis : summary of a meeting held at the National Institute of Cholera and Enteric Diseases, Calcutta, India, on 19-22 May 1986]

World Health Organization. Diarrhoeal Disease Control Programme ,  [Development of vaccines against shigellosis : summary of a meeting held at the National Institute of Cholera and Enteric Diseases, Calcutta, India, on 19-22 May 1986]