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- [2] A SEROLOGICAL SURVEY FOR CHOLERA ANTIBODIES IN RURAL EAST PAKISTAN .2. A COMPARISON OF ANTIBODY TITRES IN IMMUNIZED AND CONTROL POPULATIONS OF A CHOLERA-VACCINE FIELD-TRIAL AREA AND RELATION OF ANTIBODY TITRE TO CHOLERA CASE RATE BULLETIN OF THE WORLD HEALTH ORGANIZATION, 1968, 38 (03) : 335 - &