presence of a skilled care provider (even at the lowest level of the health system), a functioning referral system, and a reliable supply of life-saving commodities. Some services are key interventions to prevent maternal deaths, such as contraception, antenatal care, skilled birth attendance, integrated reproductive health care in the postnatal phase, postnatal care, and a range of services for adolescents and women. However, access to them remains low, especially among the poorest in high-burden countries.15