1. Children’s National Medical Center, Division of Neonatology, Washington, DC, USA
2. George Washington University School of Medicine and Health Sciences, Department of Pediatrics, Washington, DC, USA
3. Children’s National Medical Center, Division of Diagnostic Imaging and Radiology, Washington, DC, USA
4. Children’s National Medical Center, Division of Fetal-Transitional Medicine, Washington, DC, USA
5. George Washington University School of Medicine and Health Sciences, Department of Radiology, Washington, DC, USA