title: Differences in the prevalence of Chlamydia trachomatis reported by two laboratories using the direct immunofluorescence test.
mesh_terms: D002692:Chlamydia trachomatis / Q000302:isolation & purification*; D005260:Female; D005455:Fluorescent Antibody Technique; D006801:Humans; D002575:Uterine Cervicitis / Q000382:microbiology