Brinton, L A Long-term use of oral contraceptives and risk of invasive cervical cancer. [electronic resource] - International journal of cancer Sep 1986 - 339-44 p. digital Publication Type: Journal Article ISSN: 0020-7136 Standard No.: 10.1002/ijc.2910380307 doi Subjects--Topical Terms: Adenocarcinoma--chemically inducedAdultAgedCarcinoma, Squamous Cell--chemically inducedContraceptives, Oral--adverse effectsFemaleHumansMiddle AgedRiskTime FactorsUterine Cervical Neoplasms--chemically induced