1. World Health Organization. (2012). Trends in maternal mortality 1990–2010, WHO, UNICEF, UNFPA, and The World Bank estimates. Retrieved from http://www.unfpa.org/public/home/publications/pid/10728 .
2. •• World Health Organization. WHO recommendations for the prevention and treatment of postpartum haemorrhage. Geneva: World Health Organization, 2012. Retrieved from http://www.who.int/reproductivehealth/publications/maternal_perinatal_health/9789241548502/en/ . This article gives the latest and most comprehensive guidelines for the prevention and treatment of postpartum hemorrhage to reduce the global burden on maternal mortality and helps shape clinical protocols and health policies.
3. Fawole B, Awolude OA, Adeniji AO, Onafowokan O. WHO recommendations for the prevention of postpartum haemorrhage: RHL guideline (last revised: 1 May 2010). The WHO Reproductive Health Library; Geneva: World Health Organization.
4. ACOG. Practice bulletin: clinical management guidelines for obstetrician-gynecologists number 76, October 2006: postpartum hemorrhage. Obstet Gynecol. 2006;108(4):1039–47.
5. Creanga AA, Berg CJ, Syverson C, Seed K, Bruce FC, Callaghan WM. Pregnancy-related mortality in the United States, 2006-2010. Obstet Gynecol. 2015;125(1):5–12.