1. Mhyre JM, Tsen LC, et al. Cardiac arrest during hospitalization for delivery in the United States, 1998–2011. Anesthesiology. 2014;120(4):810–8.
2. World Health Organization. WHO Maternal mortality ratio (per 100,000 live births). 2016. http://WHO.int/healthinfo/statistics/indmaternalmortality/en . Accessed 11 June 2016.
3. Centers for Disease Control and Prevention. Pregnancy mortality surveillance system. 2016. http://www.cdc.gov/reproductivehealth/maternalinfanthealth/pmss.html . Accessed 6 June 2016.
4. Rose CH, et al. Challenging the 4- to 5-minute rule: from perimortem cesarean to resuscitative hysterotomy. Am J Obstet Gynecol. 2015;213(5):653–6.
5. Schneider AP, Nelson DJ, Brown DD. In hospital cardiopulmonary resuscitation: a 30 year review. J Am Board Fam Pract. 1993;6(2):91–101.