以下为句子列表：
英文: However,the risk was reduced by 38 percent for women who took highestrogen andhigh progestin pills, while the risk reduction was 81percent for thosetaking pills with low levels of both hormones.
中文: 然而，服用雌激素和黄体酮含量高的药片的女性，这个降低的几率值为38%，服用激素含量低的药片的女性，这个值为81%。
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英文: NEW YORK (Reuters Health) - Oral contracepties with low leels of estrogen and progestin reduce the risk of oarian cancer een more than older ersions of the Pill, according to inestigators at the Uniersity of Hawaii in Honolulu.
中文: 据纽约（路透社健康频道）报道――檀香山的夏威夷大学研究者指出，低含量雌激素和黄体酮的口服避孕药比旧的药丸更能降低患卵巢癌的风险。
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英文: NEWYORK (Reuters Health) - Oral contraceptives with low levels ofestrogenand progestin reduce the risk of ovarian cancer even more thanolderversions of the Pill, according to investigators at theUniversity ofHawaii in Honolulu.
中文: 据纽约（路透社健康频道）报道——檀香山的夏威夷大学研究者指出，低含量雌激素和黄体酮的口服避孕药比旧的药丸更能降低患卵巢癌的风险。
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英文: The estrogen-progestin hormonal pill differs from traditional birth-control pills in that it does not include the week offof placebo pills that leads to a cessation of artificial hormones and bleeding.
中文: 这种含有雌激素和孕酮的激素药丸与传统避孕药区别在于：它没有传统避孕药的“停药周”，因而也就没有停止服用人工激素和月经出血现象。
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英文: Women had been told for decades that estrogen taken with progestin would not only ease hot flashes and insomnia but help preserve bone strength，mental acuity and，most important，heart health.
中文: 几十年来，女性一直被告知雌激素结合孕激素服用，不仅能缓解更年期阵发性发热感、失眠症，而且能帮助保持骨骼强度、心智锐敏，而最重要的是--有益心脏健康。
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