HRSA staff contributed to a recently published special supplement to the Annals of Internal Medicine journal, to focus on evidence-based approaches to reduce maternal mortality and morbidity rates in the United States. Experts at HRSA contributed to the journal articles, which address specific HRSA maternal health initiatives, the impact of opioid use during pregnancy and issues faced by rural populations. External authors include partners from the University of Chicago, Stanford University, University of North Carolina at Chapel Hill, the University of Utah and the World Health Organization.