The means by which aspirin prevents cancer is not well understood.

这意味着目前还不清楚阿司匹林到底是怎么预防癌症的。

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The means by which aspirin prevents cancer is not well understood.

也有迹象表明阿司匹林可以帮助预防一些癌症。

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The more extreme assertions about squatting-that it prevents cancer, for example-remain untested.

一些更极端的断言，比如说蹲姿能预防癌症，还有待测试。

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" Adds Harvard School of Public Health epidemiologist Walter Willett: "It is hard to put a finger on a specific food that prevents cancer in general.

FORBES: Magazine Article

"These findings provide the first proof in man that aspirin prevents distant cancer metastasis, " the second study's authors concluded.

WSJ: Studies Find New Evidence Aspirin May Prevent Cancer

The full data from both of those studies will be presented at ASCO, as will another study showing that the company's Herceptin prevents breast cancer tumors with certain genetic defects from returning after surgery.

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