“…However MMR estimates and accurate identification of the causes of maternal death are still a complex and difficult challenge. In most developing country settings, owing to the lack of complete and accurate civil registration systems, MMR estimates are based on data from a variety of alternative sources including censuses, household surveys, reproductive age mortality studies and verbal autopsies 2. The WHO classified 183 countries/territories according to the availability and quality of maternal mortality data: 67 countries (covering 17% of births) having complete civil registration data with good attribution of causes of death, 96 countries (covering 81% of births) having incomplete civil registration and/or other types of maternal mortality data and 20 countries (covering 2% of births) lacking national data on maternal mortality.…”