1 Department of Health Policy, Vanderbilt University School of Medicine, 2525 West End Ave., Ste. 1275, Nashville, TN 37203. Electronic address: annawisotzkey@gmail.com.
2 Department of Health Policy, Vanderbilt University School of Medicine, Nashville, TN; Center for Child Health Policy, Vanderbilt University Medical Center, Nashville, TN.
3 Department of Obstetrics and Gynecology, University of Tennessee Health Science Center, Nashville, TN; Division of Perinatal Services, Ascension Saint Thomas Health, Nashville, TN.
4 Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN.
5 Vanderbilt University School of Medicine, Nashville, TN.
6 James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN.
7 Department of Obstetrics and Gynecology, University of Tennessee Health Science Center, Nashville, TN.
8 Center for Child Health Policy, Vanderbilt University Medical Center, Nashville, TN; Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, TN.