The Stationery Office. Birth Counts Statistics of Pregnancy and Childbirth 2000. Macfarlane, A., Mugford, M., Henderson, J, Furtado, A., Stevens, J., and Dunn, A. 2000. London, United Kingdom Stationery Office.
countries with civil registration data characterized as complete with good attribution of cause of death
Trends in Maternal Mortality: 1990-2008. WHO/UNICEF/UNFPA/WB