Objective To study the influence of melatonin(MT) on the sleep of anxiety and depression in elderly with sleep disorder and elderly patients with non-acute cardiac and/or cerebral vascular diseases.Methods The effect of melatonin on sleep was assessed in a multi-centers,randomized,double blinded and placebo paralleled comparison clinical study.Two hundreds twenty-four participants aged over 60 years old were cases in sub-health state or with non-acute cardiac and/or cerebral vascular diseases.They were rand...
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