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Title
Effect of oral contraceptives on risk of cervical cancer in women with human papillomavirus infection: the IARC multicentric case-control study.
Authors
Moreno V; Bosch FX; Muñoz N; Meijer CJL; Shah KV; Walboomers JMM; Herrero R; Franceschi S; International Agency for Research on Cancer. Multicentric Cervical Cancer Study Group