搜索结果: 1-1 共查到“人口统计学 Unintended Pregnancy”相关记录1条 . 查询时间(0.094 秒)
Options for Measuring Unintended Pregnancy In Cycle 6 of the National Survey of Family Growth
Unintended Pregnancy family-size target National Survey of Family Growth
2009/9/15
This essay is a commentary on a Research Note by James Trussell, Barbara Vaughn and Joseph Stanford entitled "Are All Contraceptive Failures Unintended Pregnancies? Evidence from the 1995 National Sur...