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- Bhattacharya, Sujit K., et al. Show all 10 Authors
- Vaccine 2015 v.33 no.48 pp. 6878-6883
- case-control studies; cholera; geographic information systems; vaccines
- ... Case–control studies have not been examined for their utility in assessing population-level vaccine protection in individually randomized trials.We used the data of a randomized, placebo-controlled trial of a cholera vaccine to compare the results of case–control analyses with those of cohort analyses. Cases of cholera were selected from the trial population followed for three years following dosi ...