The Harvard study falls short of the research 'gold standard', however, because the women reported their aspirin use in questionnaires, rather than going through a controlled clinical trial.

然而，哈佛的这项研究并不符合研究的“黄金标准”，因为妇女是以调查问卷的方式报告她们阿司匹林的服用情况，而不是通过一个可控制的临床试验。

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Much of the research on alcohol's benefit comes from studies that observe people over time rather than from controlled clinical trials, which are more reliable.

认为酒精有益的许多研究结果都是从长期观察的测试者身上得来，并不是随机临床试验的方式，相比起来后者更为可信。

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Take, for example, those 19 million studies on PubMed.Some are gold-standard research: large, randomized, controlled clinical trials or meta-analyses that carefully parse millions of data points.

就拿PubMed上的1900万份研究论文来说，一小部分堪称一流：大型，随机，受控的临床试验和结果的荟萃分析与论文提供的数据相当吻合。

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