Looking at studies that tested concentration, the number of studies showing a benefit was exactly the same as the number that found no benefit.

在测试注意力的研究中，显示有益的研究数量与未发现有益的研究数量完全相同。

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Looking at studies that tested concentration, the number of studies showing a benefit was exactly the same as the number that found no benefit.

在测试注意力的研究中，显示有益的研究数量与未发现有益的研究数量完全相同。

youdao