Letter: Contraceptive choice and cervical cytology.
D002584:Cervix Uteri / Q000473:pathology*; D003273:Contraceptive Devices / Q000009:adverse effects*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D065006:Papanicolaou Test; D002583:Uterine Cervical Neoplasms / Q000138:chemical synthesis / Q000209:etiology*; D014626:Vaginal Smears
D003276:Contraceptives, Oral