High risk groups for chlamydial infection.
Edwards
D
D
D000328:Adult; D002690:Chlamydia Infections / Q000453:epidemiology*; D005260:Female; D005831:Genital Diseases, Female / Q000453:epidemiology*; D006801:Humans; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology*; D012307:Risk Factors