1. Department of Pediatrics, University of Connecticut School of Medicine, Connecticut Children’s Medical Center , Hartford, Connecticut, USA
2. University of Connecticut School of Medicine , Farmington, Connecticut, USA
3. Pediatric Hematology/Oncology, Rainbow Babies and Children's Hospital , Cleveland, Ohio, USA
4. Department of Pediatrics, Albert Einstein College of Medicine, Children's Hospital at Montefiore , Bronx, New York, USA
5. ProMedica Russell J. Ebeid Children’s Hospital , Toledo, Ohio, USA
6. Department of Woman, Child and Generalized and Special Surgery, University of Campania “L. Vanvitelli,” Naples, Italy
7. Department of Women’s and Children’s Health, University of Padua , Padua, Italy
8. Division of Pediatric Hematology/Oncology, University of Michigan , Ann Arbor, Michigan, USA
9. UCSF Benioff Children's Hospital Oakland , Oakland, California, USA
10. Department of Physiology, University of Ghana Medical School , Accra, Ghana
11. Department of Child Health, University of Ghana Medical School , Accra, Ghana
12. Department of Pediatrics, Paediatric Haematology, Guys and St Thomas Hospital , London, UK
13. Ghana Institute of Clinical Genetics, Korle Bu Teaching Hospital , Accra, Ghana
14. New England Sickle Cell Institute, University of Connecticut Health Center , Farmington, Connecticut, USA
15. Center for Cancer and Blood Disorders, Children’s National Medical Center , Washington, DC, USA