Affiliation: | 1. Sickle Cell Branch, National Heart Lung and Blood Institutes/National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA;2. Department of Pediatrics, Division of Hematology, Children''s Hospital of Philadelphia, Philadelphia, PA, USA;3. Experimental Hematology, St. Jude Children''s Research Hospital, Memphis, TN, USA |