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Dendrogram constructed from the PFGE profiles generated from NotI-digested genomic DNA of V. cholerae O139 isolates in China. AH, Anhui; BJ, Beijing; CQ, Chongqing; FJ, Fujian; GD, Guangdong; GS, Gansu; GX, Guangxi; GZ, Guizhou; HA, Henan; HN, Hunan; JS, Jiangsu; JX, Jiangxi; LN, Liaoning; SC, Sichuan; SD, Shandong; SH, Shanghai; XJ, Xinjiang; YN, Yunnan; ZJ, Zhejiang. The scale shows percent similarity.
