1. Olmsted Medical Center, Rochester, Minnesota
2. University of Texas Southwestern Medical Center, Dallas
3. University of North Carolina, Chapel Hill
4. Thomas Jefferson University, Cardeza Foundation, Philadelphia, Pennsylvania
5. University of Colorado, Denver
6. University of Virginia, Charlottesville
7. Foundation for Sickle Cell Disease Research, University of Miami, Miller School of Medicine, Miami, Florida
8. Johns Hopkins School of Medicine, Baltimore, Maryland
9. University of Florida, Gainesville
10. Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
11. Duke University, Schools of Nursing and Medicine, Durham, North Carolina
12. Cincinnati Children’s Hospital Medical Center, Cincinatti, Ohio
13. Mayo Clinic College of Medicine, Rochester, Minnesota
14. National Heart, Lung, and Blood Institute, Bethesda, Maryland16Dr Goldsmith is now with the Rare Diseases Program, Office of New Drugs, US Food and Drug Administration, Bethesda, Maryland.
15. National Heart, Lung, and Blood Institute, Bethesda, Maryland17Dr Ortiz is now a private senior consultant in Bethesda, Maryland.
16. National Heart, Lung, and Blood Institute, Bethesda, Maryland18Dr Fulwood is now retired.
17. American Institutes for Research, Silver Spring, Maryland
18. National Heart, Lung, and Blood Institute, Bethesda, Maryland