1. Department of Pediatrics, Division of Neonatal-Perinatal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas
2. Department of Pediatrics, Baylor Scott & White, Dallas, Texas
3. Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas
4. Department of Radiology, Children's Health, Dallas, Texas
5. Department of Pediatrics, Parkland Hospital and Health System, Dallas, Texas