In the observational studies we found that some of the B vitamins were beneficial.

在观察性研究中，我们发现一些维生素 B 是有益的。

youdao

Observational studies are often misleading.

观测研究常常会误导。

youdao

For some of these questions, observational studies are the best we are going to get.

因为这样的一些问题，观察性的研究是我们所拥有的最好方式。

youdao

So when you put these observational studies together with a 'gold standard' clinical trial, the findings are overwhelming."

VOA: standard.2010.07.21

Now the epidemiology studies are observational studies.

流行病学研究是观察性研究

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"In the observational studies we found that some of the B vitamins, like folic acid,were beneficial."

VOA: standard.2010.06.17

Using publicly available data Reynard researchers will carry out observational studies to establish "baseline normative behaviors".

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Prior big observational studies have conflicted with one another, and other studies weren't ready to be analyzed.

FORBES: Magazine Article

Medical research commonly employs three kinds of study designs: observational studies, randomized controlled trials (RCTs), and metaanalyses.

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