A case control study into the possible effects of birth control pills on pre-clinical carcinoma of the cervix.
D000328:Adult; D001955:British Columbia; D002294:Carcinoma, Squamous Cell / Q000139:chemically induced* / Q000209:etiology; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005191:Family Characteristics; D005260:Female; D006801:Humans; D010298:Parity; D011247:Pregnancy; D012959:Socioeconomic Factors; D013997:Time Factors; D002583:Uterine Cervical Neoplasms / Q000139:chemically induced* / Q000209:etiology
D003276:Contraceptives, Oral