This study differentiates estrogen alone from estrogen and progestin in a very big way.

这项研究在很大程度上从雌激素和黄体酮当中单独区分了雌激素。

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Different types of combination birth control pills contain different doses of estrogen and progestin.

不同种类的生育控制组合药片含有不同剂量的雌激素和黄体酮。

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In July 2002, women taking estrogen and progestin were told to visit their doctors and perhaps stop because of the risk of heart attack, stroke and some forms of cancer.

在2002年7月，服用雌激素和黄体酮的妇女被告知立即就诊并可能要停药，因为她们可能面临罹患心脏病发作、中风及一些癌症的危险。

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The study did not find any differences in women taking estrogen and progestin compared to those taking only estrogen.

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With the reduction in estrogen and progestin, these problems have significantly decreased.

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"Another apparently paradoxical finding is that estrogen and progestin impart a small increase in the risks for developing and dying from breast cancer, whereas estrogen alone appears to slightly reduce these risks, " according to the U.S. Preventive Services Task Force document outlining the draft recommendations.

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