Several experts said that the cost of developing an entirely new contraceptive method outweighed prospective profits, and that research financing from pharmaceutical companies had dried up.

有些专家说研究一个完全新型的避孕药的费用大于预期的利益，医药公司提供的研究经费已经基本耗尽。

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"There is no perfect contraceptive method, so there will always be abortion."

VOA: standard.2010.06.24

Still, according to a 2002 study from the Centers for Disease Control and Prevention, the leading contraceptive method among women ages 15 to 29 is the pill.

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Unlike Dr Anderson's method, however, the Strathclyde contraceptive has not yet been tested on people, only on rodents.

ECONOMIST: Contraception