title: Chlamydial infection. Role of Chlamydia subgroup A in non-gonococcal and post-gonococcal urethritis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002478:Cells, Cultured; D002689:Chlamydia / Q000302:isolation & purification*; D002690:Chlamydia Infections / Q000150:complications; D005500:Follow-Up Studies; D006069:Gonorrhea / Q000150:complications / Q000382:microbiology; D006801:Humans; D008297:Male; D014521:Urethra / Q000382:microbiology; D014526:Urethritis / Q000150:complications / Q000382:microbiology*