Affiliation: | 1. School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania;2. Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania;3. Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, Pennsylvania;4. Sickle Cell Foundation Nigeria, Lagos, Nigeria;5. Division of Hematology/Oncology, Department of Medicine, Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania |