In one study, use of birth control pills led to a higher risk of premenopausal breast cancer in women who took the pill for four or more years before having a baby.

一项研究显示，在生育前使用口服避孕药达10年或以上，可导致绝经前乳腺癌风险增加。

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If you'd like to use combination birth control pills, your health care provider can help you decide which type is right for you.

如果你愿意使用组合药片，你的卫生保健提供者可以帮助你决定哪种药片适合你。

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It's possible to use standard estrogen-progestin birth control pills for emergency contraception, but check with your doctor for the proper dose and timing of the pills.

服用标准的雌激素-孕激素避孕药进行紧急避孕是可行的，但须与医生讨论适当的服药剂量和时间。

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It found that while the number of women using regular birth control pills had remained steady, the use of patches, intrauterine devices and injections had grown.

BBC: Morning-after pill use rises in US

Latinas frequently obtain imported birth-control pills from flea markets, together with dodgy advice about how to use them.

ECONOMIST: Hispanic families