Trends in HIV-Related Risk Behaviors Among High School Students --- United States, 1991--2005: "Young persons who engage in unprotected sexual intercourse or use injection drugs are at increased risk for human immunodeficiency virus (HIV) infection. To examine changes in HIV-related risk behavior among high school students in the United States during 1991--2005, CDC analyzed data from eight national Youth Risk Behavior Surveys (YRBS) conducted during that period. "
Friday, August 11, 2006
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