1 Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, University of North Carolina, Chapel Hill, NC. Electronic address: Sarah.heerboth@unchealth.unc.edu.
2 Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC.
3 VA HSR&D Houston Center of Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey VA Medical Center, Houston, TX; Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX; VA South Central Mental Illness Research, Education and Clinical Center, Houston, TX.
4 Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, University of North Carolina, Chapel Hill, NC; Department of Maternal-Child Health, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC.
5 Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine, Houston, TX.