Ann Borders 1, Jin-Shei Lai 2, Kwang-Youn Kim 3, Zeeshan Butt 4, John Thorp 5, Nancy Dole 6, Jane Holl 7, William Grobman 8
1 Evanston NorthShore University HealthSystem, University of Chicago Pritzker School of Medicine, Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Evanston, IL
2 Northwestern University Feinberg School of Medicine, Department of Medical Social Sciences, Chicago, IL
3 Northwestern University Feinberg School of Medicine, Department of Preventative Medicine, Chicago, IL
4 Northwestern University Feinberg School of Medicine, Department of Medical Social Sciences, Center for HealthCare Studies, Chicago, IL
5 University of North Carolina, Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Chapel Hill, NC
6 University of North Carolina, Carolina Population Center, Chapel Hill, NC
7 Northwestern University Feinberg School of Medicine, Center for HealthCare Studies, Department of Pediatrics, Chicago, IL
8 Northwestern University Feinberg School of Medicine, Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Center for HealthCare Studies, Department of Preventative Medicine, Chicago, IL