1 Department of Gynecology & Obstetrics, Division of Maternal-Fetal Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland.
2 Russell H. Morgan Department of Radiology and Radiological Science, Division of Pediatric Radiology, Section of Pediatric Neuroradiology, and the Neurosciences Intensive Care Nursery Program, Johns Hopkins University School of Medicine, Baltimore, Maryland.
3 Neurosciences Intensive Care Nursery Program and the Department of Neurology, Division of Pediatric Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland.
4 Department of Pediatrics, Division of Pediatric Neurology, Duke University Medical Center, Durham, North Carolina.
5 Department of Gynecology & Obstetrics, Division of Maternal-Fetal Medicine, and the Neurosciences Intensive Care Nursery Program, Johns Hopkins University School of Medicine, Baltimore, Maryland.