Elimination and reintroduction of a sexually transmitted disease: lessons to be learned?
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D003617:Dangerous Behavior; D018451:Homosexuality, Male; D006801:Humans; D015994:Incidence; D008297:Male; D012725:Sexual Behavior; D013587:Syphilis / Q000453:epidemiology* / Q000517:prevention & control / Q000635:transmission; D014481:United States / Q000453:epidemiology