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Comparison of clinical success between early and delayed EUS-guided interventions. Odds ratio (OR) for early intervention compared with delayed intervention is presented for each study (center of gray square) with 95% confidence interval (CI; horizontal line). Summary OR based on a meta-analysis via the random-effect model is presented at the bottom (center of black diamond) with 95% CI (the width of black diamond). P value for the Q statistic for between-study heterogeneity is shown
