1. Department of Anesthesiology; University of Pittsburgh School of Medicine; Pittsburgh Pennsylvania
2. Genomic Medicine Section; Hematology Branch, NHLBI, NIH; Bethesda Maryland
3. Division of Pediatric Hematology; Center for Cancer and Blood Disorders, Children's National Medical Center; Washington DC
4. Sickle Cell Vascular Disease Section; Hematology Branch, NHLBI, NIH; Bethesda Maryland
5. Department of Cardiovascular Medicine; John Radcliffe Hospital, University of Oxford; Oxford United Kingdom
6. Center of Excellence in Sickle Cell Disease and Department of Medicine; Boston University School of Medicine; Boston Massachusetts
7. School of Public Health, University of Memphis; Memphis Tennessee
8. Laboratory of Neurogenetics; NIAAA, NIH; Bethesda Maryland