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Citation
Díaz M, Valdivia A, Martínez P, Palacios J, Harris P, Novales J, Garrido E, Valderrama D, Shilling C, Kirberg A, Hebel E, Fierro J, Bravo R, Siegel F, Leon G, Klapp G, Venegas A. Helicobacter pylori vacA s1a and s1b alleles from clinical isolates from different regions of Chile show a distinct geographic distribution. World J Gastroenterol 2005; 11(40): 6366-6372 [PMID: 16419167 DOI: 10.3748/wjg.v11.i40.6366]
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