1. Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico University of Milan Milan Italy
2. Department of Internal Medicine American University of Beirut Medical Center Beirut Lebanon
3. Department of Clinical and Biological Sciences University of Turin Turin Italy
4. Department of Haematology Whittington Health NHS Trust London UK
5. Centre of Excellence in Rare Haematological Diseases—Haemoglobinopathies Laiko General Hospital Athens Greece
6. Siriraj Hospital Mahidol University Bangkok Thailand
7. University College London Hospitals NHS Foundation Trust London UK
8. Necker Hospital, Assistance Publique–Hôpitaux de Paris Paris France
9. Imagine Institute, INSERM Unité 1163 University of Paris Paris France
10. St. Jude Children's Research Hospital Memphis Tennessee USA
11. Ann & Robert H. Lurie Children's Hospital of Chicago Chicago Illinois USA
12. Bristol Myers Squibb Princeton New Jersey USA
13. Evidera Waltham Massachusetts USA
14. Acceleron Pharma Inc., a Subsidiary of Merck & Co., Inc. Rahway New Jersey USA
15. Grande Ospedale Metropolitano Bianchi Melacrino Morelli Reggio Calabria Italy