Dynamic Expansion and Contraction of <i>cagA</i> Copy Number in <i>Helicobacter pylori</i> Impact Development of Gastric Disease.

mBio · 2017 · PMC5358911 · PMID 28223454

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did not reach statistical significanceno p-value reported

While strains cagA- S F -1 and cagA- S L -2 induced higher levels of IL-8 than strain Δ cagA FL -2, the difference did not reach statistical significance.

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