Sodium oxybate for the maintenance of abstinence in alcohol-dependent patients: An international, multicenter, randomized, double-blind, placebo-controlled trial.

Interestingly, in the meta-analysis model, the Cochran Q test was highly significant ( p = 0.001) and substantial heterogeneity of the treatment effect across sites was identified ( I 2 = 60.8%, 95% CI: 24.2–79.7%; Figure 3 ).

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