Affiliation: | (1) Sickle Cell Center, Department of Medicine, Medical College of Georgia, Augusta, GA;(2) Georgia Prevention Institute, Department of Pediatrics, Medical College of Georgia, Augusta, GA, USA;(3) Twin Research and Genetic Epidemiology Unit, St. Thomas' Hospital, London, UK;(4) Department of Pediatrics, Medical College of Georgia, Augusta, GA, USA;(5) Department of Neurology, Medical College of Georgia, Augusta, GA, USA;(6) New England Research Institute, Watertown, MA, USA |