[Intrauterine devices and uterine cancer--statistical re-evaluation of Ishibama's data].
D000328:Adult; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects*; D008403:Mass Screening; D014594:Uterine Neoplasms / Q000453:epidemiology / Q000209:etiology*; D014626:Vaginal Smears