1. Racial/ethnic disparities in pregnancy-related deaths — United States, 2007–2016;Petersen;MMWR Morb Mortal Wkly Rep,2019
2. Building U.S. capacity to review and prevent maternal deaths. In informant interview guide for maternal mortality revivew committees. 2019. Accessed from: https://reviewtoaction.org/content/informant-interview-guide-maternal-mortality-review-committees, Accessed November 8, 2020.
3. Overview of maternal mortality in the United States;Callaghan;Semin. Perinatol.,2012
4. Reducing disparities in severe maternal morbidity and mortality;Howell;Clin Obstet Gynecol,2018
5. Committee Opinion No. 649