搜索结果: 1-1 共查到“人口学 heterosexual transmission”相关记录1条 . 查询时间(0.078 秒)
The Effectiveness of Condoms in Reducing Heterosexual Transmission of HIV
Condoms condom usage Heterosexual Transmission
2009/9/15
Context: It is not established whether the condom is as effective at preventing heterosexual transmission of HIV as it is for preventing conception. An overall estimate of condom effectiveness for HIV...