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Forest plots of pooled comparisons of the frequency of satisfactory behavior during venipuncture. Black boxes relative risks (RR). Black lines surrounding boxes represent the respective 95% CI. The black diamond represents the combined RR estimate, and its width corresponds to the 95% CI bounds. MDZ, midazolam; MIKE, Combinations of midazolam and ketamine; M-H, Mantel-Haenszel.
