AIM: to observe the effect of melatonin in treating elderly patients with primary insomnia by using the objective evaluating method of double blind placebo control.
2
目前也还没有证据表明广受欢迎的膳食补充剂褪黑素和缬草根可以有效治疗失眠症。
There is no evidence backing the effectiveness of the popular dietary supplements melatonin and valerian to fight insomnia.
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