Sex, lives, and chlamydia rates.
Dan
B B
BB
D002170:Canada / Q000453:epidemiology; D002690:Chlamydia Infections / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D000292:Pelvic Inflammatory Disease / Q000209:etiology; D012725:Sexual Behavior; D012749:Sexually Transmitted Diseases / Q000453:epidemiology*; D013334:Students