1. Drug and opioid-involved overdose deaths—United States, 2013–2017;Scholl;MMWR Morb Mortal Wkly Rep,2019
2. Drugs most frequently involved in drug overdose deaths: United States, 2011-2016;Hedegaard;Natl Vital Stat Rep,2018
3. Births: final data for 2017;Martin;Natl Vital Stat Rep,2018
4. Patterns of opioid utilization in pregnancy in a large cohort of commercial insurance beneficiaries in the United States;Bateman;Anesthesiology,2014
5. Postdischarge opioid use after cesarean delivery;Osmundson;Obstet Gynecol,2017