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    • Beral, V.; Doll, R.; Hermon, C.; Peto, R.; Reeves, G.; Brinton, L.; Green, A. C.; Marchbanks, P.; Negri, E.; Ness, R.; Peeters, P.; Vessey, M.; Calle, E. E.; Rodriguez, C.; Dal Maso, L.; Talamini, R.; Cramer, D.; Hankinson, S. E.; Tworoger, S. S.; Chetrit, A.; Hirsh-Yechezke (2008)
      Background: Oral contraceptives were introduced almost 50 years ago, and over 100 million women currently use them. Oral contraceptives can reduce the risk of ovarian cancer, but the eventual public-health effects of this ...