World Health Organization (WHO). 1999. Reduction of Maternal Mortality: A Joint WHO/ UNFPA/UNICEF/World Bank Statement. Geneva: WHO. Available online at http://www.who.int/reproductive-health/publications/reduction_of_maternal_mortality/reduction_of_maternal_mortality_contents.htm.
World Health Organization (WHO). 2000. Making Pregnancy Safer: A Health Sector Strategy for Reducing Maternal and Perinatal Morbidity and Mortality. Geneva: WHO.
World Health Organization (WHO). 2001. Emergency and Humanitarian Action. Geneva: WHO. Available online at http://www.who.int/inf-fs/en/fact090.html.
World Health Organization (WHO), United Nations Children’s Fund (UNICEF), United Nations Population Fund (UNFPA). 2001. Maternal Mortality in 1995: Estimates Developed by WHO, UNICEF and UNFPA. Geneva: WHO.
Younis N, Khattab H, Zurayk H, el-Mouelhy M, Amin MF, Farag AM. 1993. A community study of gynecological and related morbidities in rural Egypt. Studies in Family Planning 24(3):175–186.
Zhu B-P, Rolfs RT, Nangle BE, Horan JM. 1999. Effect of the interval between pregnancies on perinatal outcomes. New England Journal of Medicine 340:589–594.