Sexually transmitted diseases: the national view.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001424:Bacterial Infections / Q000635:transmission; D005260:Female; D005831:Genital Diseases, Female / Q000635:transmission*; D005832:Genital Diseases, Male / Q000635:transmission*; D006801:Humans; D008297:Male; D012306:Risk; D012749:Sexually Transmitted Diseases / Q000453:epidemiology / Q000628:therapy / Q000635:transmission*; D013577:Syndrome; D014481:United States; D014777:Virus Diseases / Q000635:transmission