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

The gold standard of scientific evidence is the randomised controlled trial, preferably one with a lot of people and held over a long time.

国际上科学证据的标准是由随机对照实验得出的结果，尤其是那些有很多人参与又经过很长时间的实验。

youdao

No randomised controlled trials or controlled trials were identified that compared surgical spinal fixation surgery to other treatments in patients with a traumatic SCI.

没有发现比较脊髓损伤病人，行外科脊柱固定手术和其他治疗的随机对照临床试验或其他有对照组的临床试验。

youdao

The researchers at Harvard couldn't run a randomised controlled trial where half the participants ate burgers for two decades and the other half didn't, but they could use statistical techniques as the next best thing.

BBC: Red meat: What is a 13% increase in the risk of death?

The ScanBrit randomised, controlled, single-blind study of a gluten- and casein-free dietary intervention for children with autism spectrum disorders.

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