目的：了解静脉注射海洛因滥用者HIV感染情况及高危行为与HIV感染率的关系。
Objective: To understand the situation of HIV infections among intravenous injection heroin abusers and the relationship between high-risk behaviors and HIV infection.
目的：了解静脉注射海洛因滥用者HIV感染情况及高危行为与HIV感染率的关系。
Objective: To understand the situation of HIV infections among intravenous injection heroin abusers and the relationship between high-risk behaviors and HIV infection.
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