[1] Stanford University School of Medicine,Division of Pediatric Cardiology, Department of Pediatrics
[2] Stanford University School of Medicine,Stanford Cardiovascular Institute
[3] Stanford University School of Medicine,Division of Cardiovascular Medicine, Department of Internal Medicine
[4] Stanford University School of Medicine,Division of Neonatal and Developmental Medicine, Department of Pediatrics
[5] Stanford University School of Medicine,Division of Maternal
[6] University of Arkansas for Medical Sciences,Fetal Medicine and Obstetrics, Department of Obstetrics and Gynecology
[7] Arkansas Children’s Research Institute,Department of Pediatrics, College of Medicine
[8] University of Arkansas for Medical Sciences,Department of Epidemiology, Fay W. Boozman College of Public Health