1. Why is US maternal mortality rising?;Carroll;JAMA,2017
2. Centers for Disease Control and Prevention. Severe maternal morbidity in the United States. 2020. Available at:https://www.cdc.gov/reproductivehealth/maternalinfanthealth/severematernalmorbidity.html. Accessed November 27, 2020.
3. Racial and ethnic disparities in severe maternal morbidity: a multistate analysis, 2008–2010;Creanga;Am J Obstet Gynecol,2014
4. Racial and ethnic disparities in severe maternal morbidity prevalence and trends;Leonard;Ann Epidemiol,2019
5. Reducing disparities in severe maternal morbidity and mortality;Howell;Clin Obstet Gynecol,2018