title: A retrospective study of 191 cases of pelvic inflammatory disease.
mesh_terms: D000293:Adolescent; D000328:Adult; D001955:British Columbia; D005260:Female; D006069:Gonorrhea / Q000453:epidemiology; D006801:Humans; D000292:Pelvic Inflammatory Disease / Q000453:epidemiology* / Q000209:etiology; D012189:Retrospective Studies