title: Evaluation of two simultaneously obtained cervical cytological smears.
mesh_terms: D002278:Carcinoma in Situ / Q000473:pathology; D002584:Cervix Uteri / Q000473:pathology*; D003273:Contraceptive Devices; D003276:Contraceptives, Oral / Q000009:adverse effects; D004847:Epithelial Cells; D005069:Evaluation Studies as Topic; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D011446:Prospective Studies; D011647:Puerto Rico; D013246:Sterilization, Tubal; D014481:United States; D002583:Uterine Cervical Neoplasms / Q000139:chemically induced / Q000175:diagnosis / Q000453:epidemiology / Q000473:pathology*; D014626:Vaginal Smears / Q000592:standards*
chemical_list: D003276:Contraceptives, Oral