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doi: 10.1136/tc-2024-058794 [2] Press release, Plastic treaty negotiations: future treaty must include avoidable pollution from tobacco products, CNCT, published on April 22, 2024 National Committee Against Smoking |

In cases where publication bias was suspected, the missing study data were imputed using the Duval and Tweedie trim-and-fill method to adjust for funnel plot asymmetry, and small study effects were assessed 535

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