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Prof Evans is leading a study into the use of the drug tamoxifen, which may reduce the risk of breast cancer by 40 per cent.

埃文教授正在领头研究有关三苯氧胺（一种抗肿瘤药）的使用，该药可以将乳腺癌的危险性减小40%。

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The study didn't look at the risk of addiction among those with high IQs because it wasn't able to measure the frequency of drug use in participants.

这项研究没有涉及高智商人群中药物成瘾的风险，因为不能测量受访者的药物使用频率。

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"We were looking through a peephole, " says Nelson, who is one of 3, 500 primary care doctors in an Aventis-funded study of the drug that will use the A1C test to measure which diabetes treatments are most effective.

FORBES: Is Diabetes The Next High Cholesterol?

Groups such as the Institute for the Study of Drug Dependence say that amphetamine use is actually falling, despite its association with the club scene.

BBC: Amphetamine brain damage measured

Merck recalled Vioxx after its own study linked long-term use of the drug to an increased risk of heart attacks and strokes.

FORBES: Merck's Deleted Data