British Journal of Cancer, 105 Suppl 2(Suppl 2), S42-S48
The International Agency for Research on Cancer (IARC) Monographs on the carcinogenic risk to humans concluded that combined oral oestrogen–progestogen contraceptives are carcinogenic to humans (IARC, 2007). This evaluation was made on the basis of increased risks for cancer of the breast (among current and recent users only), cervix and liver (in populations that are at low risk for hepatitis B viral infection). There is also convincing evidence in humans that these agents confer a protective effect against cancer of the endometrium and ovary.
Parkin, D. M. (2011). 10. Cancers attributable to exposure to hormones in the UK in 2010. *British journal of cancer*, *105 Suppl 2*(Suppl 2), S42-S48. https://doi.org/10.1038/bjc.2011.483
Parkin DM. 10. Cancers attributable to exposure to hormones in the UK in 2010. Br J Cancer. 2011;105 Suppl 2(Suppl 2):S42-S48. doi:10.1038/bjc.2011.483
Parkin, Donald Maxwell. "10. Cancers attributable to exposure to hormones in the UK in 2010." *British journal of cancer*, vol. 105 Suppl 2, no. Suppl 2, 2011, pp. S42-S48.
Contraceptives, Oral, Combined, Contraceptives, Oral, Hormonal, Hormones,