Williams says there were sweeping epidemiological studies conducted in the 1950s and '60s, looking into the causes of respiratory infections.

威廉姆斯说，在20世纪50年代和60年代进行了广泛的流行病学研究，研究呼吸道感染的原因。

Another large epidemiological study, the Framingham Heart Study, further supported a link between blood cholesterol and the risk of heart disease.

另一个流行病学研究，弗雷明翰心脏研究所支持这一判断，即血液中的胆固醇与心脏疾病的关联。

This suggestion comes primarily from epidemiological studies that show an association between the use of artificial sweeteners and obesity and diabetes.

这一发现主要来自流行病学研究，研究表明，人造甜味剂的使用与肥胖和糖尿病之间存在联系。

This was one of the biggest epidemiological studies ever done.

这是有史以来规模最大的流行病学研究之一。

We know this from epidemiological studies across millions of individuals.

我们从对数百万人的流行病学研究中了解到这一点。

There was a recent, very large epidemiological study actually looking at whether or not drinkers were more or less likely to have a baby.

最近有一项非常大规模的流行病学研究，实际上是在研究饮酒者生孩子的可能性是大还是小。