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Title
Cervical cancer and use of hormonal contraceptives: a systematic review.
Authors
Smith, Jennifer S; Green, Jane; Berrington de Gonzalez, Amy; Appleby, Paul; Peto, Julian; Plummer, Martyn; Franceschi, Silvia; Beral, Valerie
Abstract
Human papillomavirus (HPV) is believed to be the most important cause of cervical cancer. Recent studies suggest that long duration use of oral contraceptives increases the risk of cervical cancer in HPV positive women.