搜索结果: 1-1 共查到“计划生育学 Nonuse”相关记录1条 . 查询时间(0.076 秒)
Factors Associated with Contraceptive Use and Nonuse, United States, 2004
Contraceptive Use United States Nonuse
2009/9/17
CONTEXT: Each year, nearly one in four U.S.womenat risk of unintended pregnancy experience one or more months of contraceptive nonuse. Understanding what factors are associated with risky contraceptiv...