法学 >>> 人口学 >>> 计划生育学 >>>
搜索结果: 1-3 共查到计划生育学 infection相关记录3条 . 查询时间(0.14 秒)
Context: Few U.S. women protect themselves against both pregnancy and sexually transmitted diseases (STDs) by using an efficient contraceptive method and a condom. Understanding the factors that influ...
Selective screening has been associated with marked declines in the prevalence of chlamydial infection, the most common bacterial sexually transmitted disease (STD) in the United States. A comparison ...
An analysis of data on 20-39-year-old men participating in the 1991 National Survey of Men finds that of 466 respondents who had ever had a sexually transmitted disease (STD), 25% had sex while infect...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...