1. From the Division of Cardiology, Department of Medicine (M.L.T., A.A.Q.), Emory University School of Medicine, Atlanta, GA
2. Atlanta Gynecology and Obstetrics, GA (E.M.D.)
3. Division of Maternal-Fetal Medicine, Department of Gynecology and Obstetrics (I.K., M.L.B.), Emory University School of Medicine, Atlanta, GA
4. Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA (V.V.).