研究者以在1934至1944年之间出生的6,000多名赫尔辛基女性作为研究对象，这些人中有300人患上乳腺癌，48人死于这种疾病。

The researchers examined the records of more than 6, 000 women born in Helsinki between 1934 and 1944. Of these 300 developed breast cancer, and 48 went on to die from the disease.

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研究者以在1934至1944年之间出生的6,000多名赫尔辛基女性作为研究对象，这些人中有300人患上乳腺癌，48人死于这种疾病。

The researchers examined the records of more than 6,000 women born in Helsinki between 1934 and 1944. Of these 300 developed breast cancer, and 48 went on to die from the disease.

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在研究中，研究者以没有明显攻击倾向的青春期男孩作为对照组，将八个16到18岁具有明显攻击性的男孩与之对比。

In the study, the researchers compared eight 16 - to 18-year-old boys who were unusually aggressive to a control group of adolescent boys with no unusual signs of aggression.

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