1 Division of Neonatal-Perinatal Medicine, Departments of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America; Neurosciences Intensive Care Nursery, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America; Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America; Division of Pediatric Neurosurgery, Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, United States of America; Kennedy Krieger Institute, Baltimore, MD, United States of America.