1. Characteristics of women of reproductive age with laboratory-confirmed SARS-CoV-2 infection by pregnancy status – United States, January 22-June 7, 2020;Ellington;MMWR Morb Mortal Wkly Rep,2020
2. Maternal Mortality Rates in the United States;Hoyert,2021
3. United States Government Accountability Office. Maternal Health. Outcomes Worsened and Disparities Persisted During the Pandemic [GAO-23-105871]. United States Government Accountability Office. Available at: https://www.gao.gov/assets/gao-23-105871.pdf. Accessed March 16, 2023.
4. Impact of COVID-19 on pregnancy outcomes across trimesters in the United States;Virk;Biomedicines,2023
5. Centers for Disease Control and Prevention. Investigating the Impact of COVID-19 During Pregnancy. Centers for Disease Control and Prevention. Available at: https://stacks.cdc.gov/view/cdc/93591. Accessed September 18, 2021.