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搜索结果: 1-2 共查到性医学 Teenage Pregnancy相关记录2条 . 查询时间(0.171 秒)
Context: Adolescent pregnancy, birth, abortion and sexually transmitted disease (STD) rates are much higher in the United States than in most other developed countries. Methods: Government statist...
Context: Although the determinants of whether a teenage woman has a nonmarital pregnancy and how such a pregnancy is resolved have been widely investigated, little is known about the effect of her par...

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