Guillebaud J. Contraception – your questions answered. 5th edition. Elsevier, 2009.
Guillebaud J. Contraception today. 6th edition. Informa Healthcare, 2007.
Hannaford PC, Selvaraj S, Elliott AM, Angus V, Iversen L, Lee AJ. Cancer risk among users of oral contraceptives: cohort data from the Royal College of General Practitioner’s oral contraception study. British Medical Journal 2007;335:651–9.
International Consortium for Emergency Contraception, FIGO. Emergency Contraceptive Pills: Medical and Service Delivery Guidelines, 2012.
Jacobstein R, et al. Progestin-only contraception: Injectables and implants. Best Practice & Research in Clinical Obstetrics and Gynaecology 2014; 28: 795-806.
Lidegaard Ø, Milson I, Geirsson RT, Skjeldestad FE. Hormonal contraception and venous thromboembolism. Acta Obstetricia et Gynecologica Scandinavica 2012;91:769–78.
Van Vlijmen E et al. Combined oral contraceptives, thrombophilia and the risk of venous thromboembolism: a systematic review and meta-analysis. J Thromb Haemostat 2016;1393–1403.
Vessey M, Painter R. Oral contraceptive use and cancer. Findings in a large cohort study, 1968–2004. British Journal of Cancer 2006;95:385–9.
World Health Organization Department of Reproductive Health and Research (WHO/RHR) and Johns Hopkins Bloomberg School of Public Health/Center for Communication Programs (CCP), Knowledge for Health Project. Family Planning: A Global Handbook for Providers (2011 update). Baltimore and Geneva: CCP and WHO, 2011.