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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Study Design. A simple blind, random controlled clinical trial.

研究目的：单盲，随机对照临床试验。

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Methods It is a randomized double-blind parallel controlled multiple-centered clinical study design. The inpatients 161 cases who accorded program and needed parental nutrition enter this study.

方法本研究为随机双盲、平行对照、多中心实验设计，符合研究方案、需要肠外营养的住院病人161例进入本研究。

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Packer says this is the first placebo-controlled study in acute heart failure to show a clinical benefit.

FORBES: Open Questions For Heart Failure Drugs

For one, the groups noted the analysis is a retrospective study, not a prospective, randomized controlled clinical trial, which many regard as a gold standard for ferreting out safety concerns.

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