1. 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. Baltimore and Geneva: CCP and World Health Organization; 2018.
2. World Health Organization. Emergency contraception; 2018. Available from: http://www.who.int/en/news-room/fact-sheets/detail/emergency-contraception. Accessed August 4, 2022.
3. International Consortium for Emergency Contraception (ICEC). Emergency Contraceptive Pills: Medical and Service Delivery Guidelines. 4th ed. Washington DC: ICEC; 2018.
4. Unintended pregnancy and abortion by income, region, and the legal status of abortion: estimates from a comprehensive model for 1990–2019