title: Chlamydial infection. Incidence in 'non-specific' urethritis.
mesh_terms: D001431:Bacteriological Techniques; D002478:Cells, Cultured; D002584:Cervix Uteri / Q000382:microbiology; D002689:Chlamydia / Q000302:isolation & purification; D002690:Chlamydia Infections / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D012007:Rectum / Q000382:microbiology; D014521:Urethra / Q000382:microbiology; D014526:Urethritis / Q000453:epidemiology* / Q000382:microbiology