1. School of Medicine; Meharry Medical College; Nashville TN USA
2. Department of Pediatrics; Vanderbilt-Meharry Center of Excellence in Sickle Cell Disease; Vanderbilt University Medical Center; Nashville TN USA
3. Department of Radiology; Division of Nuclear Medicine; Washington University School of Medicine; Saint Louis MO USA
4. Department of Pediatrics; Division of Pediatric Neurology; Vanderbilt University Medical Center; Nashville TN USA
5. Rodeghier Consultants; Chicago IL USA
6. Department of Radiology; Divisions of Pediatric Radiology and Neuroradiology; Vanderbilt University Medical Center; Nashville TN USA
7. Pediatric Radiology and Neuroradiology Sections; Washington University School of Medicine; Saint Louis MO USA