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Association between geographical origin of H. pylori strains and presence of multiple cagA repeats
| Geographical origin | No. (%) of isolates in indicated cagA repeat category (n = 299) |
P value | |
|---|---|---|---|
| Multiple | Single | ||
| South Korea | 0 (0) | 219 (100) | <0.001 |
| United States | 6 (7.5) | 74 (92.5) | |
