1. Sickle Cell Disease Enterprise The Levine Cancer Institute, Atrium Health Charlotte North Carolina USA
2. New England Sickle Cell Institute, University of Connecticut Health Farmington Connecticut USA
3. Albert Einstein College of Medicine New York New York USA
4. Evelina Childrenʼs Hospital Guyʼs and St Thomasʼ NHS Foundation Trust London UK
5. Emory University School of Medicine and Georgia Comprehensive Sickle Cell Center at Grady Health System Atlanta Georgia USA
6. Sickle Cell Disease Association of America Baltimore Maryland USA
7. University of Texas Southwestern Medical Center Dallas Texas USA
8. Sickle Cell 101 San Jose California USA
9. American University of Beirut Medical Center Beirut Lebanon
10. Sickle Cell Disease Referral Centre, Internal Medicine Department, Hôpital Européen Georges‐Pompidou, AP‐HP Université de Paris Paris France
11. Azienda Ospedale‐Università di Padova Padova Italy
12. Hôpital Universitaire Necker‐Enfants Malades Paris France
13. Thalassemia and Sickle Cell Society Hyderabad India
14. Umm Al‐Qura University Mecca Saudi Arabia
15. Academic Medical Center Amsterdam The Netherlands
16. Pediatric Hematology, Hospital Samaritano Laureate University‐UAM São Paulo Brazil
17. Novartis Pharmaceuticals Corporation East Hanover New Jersey USA
18. Novartis Pharma AG Basel Switzerland
19. Adelphi Real World Bollington UK
20. Sickle Cell Society London UK