Data from 62 studies, including randomized controlled trials and post-marketing studies, were included in the review.

资料来源于62项研究，包括随机对照试验和上市后研究。

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There are about two dozen backward-looking analyses of patient data suggesting keto works, and, more significant, two randomized, controlled studies published in 2008.

过去的24个病例数据表明酮类在此方面的疗效，并且更重要的是，两个随机的有对照的研究在2008年发表。

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We included in the analysis 17 articles that met our basic quality criteria: 5 randomized human laboratory trials and 12 epidemiological studies.

5篇关于随机人体实验室试验,12篇关于流行病学研究。

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Twenty-one of the studies included in the review were randomized controlled trials, which are considered the gold standard for scientific research.

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These are the gold standard randomized control trials or intervention studies, in which a control group consuming soda is monitored for weight gain over time against a group which stops drinking soda (and all other dietary and lifestyle factors are controlled for).

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But randomized controlled clinical trials also are used to prove benefit in big drug studies.

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