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  1. Article

    Open Access

    Oral contraceptives, reproductive history and risk of colorectal cancer in the European Prospective Investigation into Cancer and Nutrition

    Oral contraceptive use and reproductive factors may initiate long-term changes to the hormonal milieu and thereby, possibly influence colorectal cancer risk.

    K K Tsilidis, N E Allen, T J Key, K Bakken, E Lund, F Berrino in British Journal of Cancer (2010)