搜索结果: 1-2 共查到“计划生育学 Contraceptive Failure”相关记录2条 . 查询时间(0.015 秒)
Contraceptive Failure in the First Two Years of Use：Differences Across Socioeconomic Subgroups
Contraceptive Failure Socioeconomic Subgroups women
2009/9/16
Context: While differences in levels of contraceptive use across socioeconomic subgroups of women have narrowed greatly over time, large disparities remain in rates of unintended pregnancy. One reason...
Contraceptive Failure and Its Subsequent Effects in China：A Two-Stage Event History Analysis
Contraceptive Failure China Subsequent Effects
2009/4/8
This study examines the determinants of contraceptive failure and its consequences. It identifies various difference in the occurrence of contraceptive failure and the ways such pregnancies are resolv...