1. Department of Hematology and Blood Transfusion Barau Dikko Teaching Hospital/Kaduna State University Kaduna Nigeria
2. Department of Hematology and Blood Transfusion Aminu Kano Teaching Hospital/Bayero University Kano Nigeria
3. Department of Pediatrics Aminu Kano Teaching Hospital/Bayero University Kano Nigeria
4. Department of Radiology Aminu Kano Teaching Hospital/Bayero University Kano Nigeria
5. Department of Pediatrics Hasiya Bayero Children's Hospital Kano Nigeria
6. Department of Pediatrics Murtala Muhammad Specialist Hospital Kano Kano Nigeria
7. Department of Pediatrics Barau Dikko Teaching Hospital/Kaduna State University Kaduna Nigeria
8. Department of Pediatrics Division of Pediatric Neurology Vanderbilt University of Medicine Nashville TN USA
9. Family Medicine/Preventive Medicine Vanderbilt Institute for Global Health Vanderbilt University Medical Center Nashville TN USA
10. Rodeghier Consulting Chicago IL USA
11. Department of Medicine Division of Hematology/Oncology Vanderbilt‐Meharry Center of Excellence in Sickle Cell Disease Vanderbilt University Medical Center Nashville TN USA
12. Department of Pediatrics Division of Hematology‐Oncology Vanderbilt‐Meharry Center of Excellence in Sickle Cell Disease Vanderbilt University Medical Center Nashville TN USA
13. Department of Epidemiology School of Public Health University of Alabama at Birmingham Birmingham AL USA