1. Vanderbilt-Meharry Sickle Cell Center for Excellence,
2. Divisions of Pediatric Radiology and Neuroradiology, Department of Radiology, and
3. Divisions of Emergency Radiology and Neuroradiology, Department of Radiology, Vanderbilt University Medical Center, Nashville, TN;
4. Rodeghier Consultants, Chicago, IL;
5. Division of Pediatric Neurology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN; and
6. Department of Medicine, Drexel University College of Medicine, Philadelphia, PA