From the Centers for Disease Control. Selected behaviors that increase risk for HIV infection among high school students--US, 1990.
D000293:Adolescent; D000294:Adolescent Behavior; D000328:Adult; D005260:Female; D015658:HIV Infections / Q000209:etiology*; D006801:Humans; D008297:Male; D012307:Risk Factors; D012309:Risk-Taking; D012725:Sexual Behavior; D019966:Substance-Related Disorders / Q000150:complications; D014481:United States