title: The role of Chlamydia trachomatis in middle ear effusions in children.
mesh_terms: D000907:Antibodies, Bacterial; D002648:Child; D002675:Child, Preschool; D002690:Chlamydia Infections / Q000276:immunology; D002692:Chlamydia trachomatis / Q000276:immunology / Q000302:isolation & purification; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D010033:Otitis Media / Q000209:etiology* / Q000382:microbiology
chemical_list: D000907:Antibodies, Bacterial