Clinicopathological analysis of claudin 18.2 focusing on intratumoral heterogeneity and survival in patients with metastatic or unresectable gastric cancer.

However, after further excluding patients with positive EBV and MSI-H ( n = 31), while the difference in OS between the two groups was maintained, it did not reach statistical significance (24.6 versus 16.5 months, P = 0.166) ( Supplementary Table S5 , available at https://doi.org/10.1016/j.esmoop.2024.104000 ).

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