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Chen, F., G. M. Evins, W. L. Cook, R. Almeida, N. Hargrett-Bean, och K. Wachsmuth. Genetic Diversity Among Toxigenic and Nontoxigenic Vibrio Cholerae O1 Isolated From the Western Hemisphere. Cambridge University Press, 1991.

Chen, F., et al. Genetic Diversity Among Toxigenic and Nontoxigenic Vibrio Cholerae O1 Isolated From the Western Hemisphere. Cambridge University Press, 1991.