1. 1Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN
2. 2Center for Sickle Cell Disease, University of Tennessee Health Science Center, Memphis, TN
3. 3Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN
4. 4RTI International, Research Triangle Park, NC
5. 5Department of Family and Community Medicine, University of California San Francisco School of Medicine, San Francisco, CA
6. 6Center for Blood Disorders, Medical College of Georgia, Augusta University, Augusta, GA
7. 7Department of Pediatrics, Washington University in St. Louis, St. Louis, MO
8. 8Division of Public Health Sciences, Department of Surgery, Washington University, St. Louis, MO
9. 9Department of Public Health Sciences, College of Medicine, Medical University of South Carolina, Charleston, SC
10. 10Sickle Cell Center, University of Illinois at Chicago, Chicago, IL
11. 11Department of Psychology and Biobehavioral Sciences, St. Jude Children’s Research Hospital, Memphis, TN
12. 12Department of Psychology, Concordia University, Montreal, QC, Canada
13. 13Division of Hematology, Oncology, and Stem Cell Transplant, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL
14. 14Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL
15. 15Department of Emergency Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
16. 16Department of Medicine, University of Florida, Gainesville, FL
17. 17Health Promotion and Behavioral Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX
18. 18Department of Population Health Studies, Duke University, Durham, NC
19. 19Center of Innovation to Accelerate Discovery and Practice Transformation Durham Veterans Affairs Medical Center, Durham, NC
20. 20Department of Pediatric Hematology and Oncology, Duke University, Durham, NC