The answer is the "gold standard" double blind, placebo controlled study.

答案是“金标准”，双盲，安慰剂对照研究。

youdao

The review included only double-blind randomised controlled trials, which are the best type of study for finding out the effects of a treatment.

这份研究只包含了双盲随机控制实验，这是找寻治疗效果最好的研究方式。

youdao

So, in fact, this double blind placebo controlled study does not guarantee safety or efficacy because the test leaves far too many questions unanswered.

所以实际上，双盲对照研究并不会保证疗效和安全，因为它留下太多无法回答的问题。

youdao

It is because the government-funded trial was a placebo-controlled, double-blind, randomized controlled trial.

FORBES

Dr. Hartwell, who wasn't involved in the study, said social-network trials aren't likely to replace conventional randomized, double-blinded, placebo-controlled trials, the gold-standard for generating medical evidence.

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The randomized, double-blind, placebo-controlled, multi-center trial enrolled 51 patients age 12 to 53 years, including 7 patients age 12 to 16 years, who were maintaining a regimen of maximally-tolerated lipid lowering medications.

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