Prevention. In the dark about safe sex.
MacPherson
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D000293:Adolescent; D016497:Adolescent Health Services; D006266:Health Education; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D012749:Sexually Transmitted Diseases / Q000453:epidemiology / Q000517:prevention & control*; D014481:United States / Q000453:epidemiology