1. Division of Human Genetics, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.
2. Sickle Cell Programme, Muhimbili University of Health and Allied Sciences (MUHAS), Dar es Salaam, Tanzania.
3. Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa.
4. London North West University Healthcare NHS Trust and Imperial College London, London, UK.
5. Sickle Cell Disease Genomics Network of Africa (SickleGenAfrica), University of Ghana, Accra, Ghana.
6. Department of Microbiology, Hematology and Immunology, Faculty of Medicine and Pharmaceutical Sciences of the University of Dschang, Dschang, Cameroon.
7. Department of Paediatric and Child Health, Makerere University/Mulago National Referral Hospital, Kampala, Uganda.
8. University Teaching Hospitals—Children's Hospital, University of Zambia, School of Medicine, Lusaka, Zambia.
9. Onco-hematology Unit, Instituto da Criança, Hospital das Clínicas, Universidade de São Paulo, São Paulo, Brazil.
10. Department of Biochemistry, Faculty of Science, Jomo Kenyatta University of Agriculture and Technology, Juja, Kenya.
11. University of Rwanda, School of Medicine and Pharmacy, Kigali, Rwanda.
12. Kumasi Centre for Sickle Cell Disease, Komfo Anokye Teaching Hospital, Accra, Ghana.
13. University of Zimbabwe College of Health Sciences, Harare, Zimbabwe.
14. Department of Public Health Sciences, Parkinson School of Health Sciences and Public Health, Loyola University Chicago, Maywood, Illinois, USA.
15. Division of Hematology, Center for Cancer and Blood Disorders, Children's National Medical Center, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.
16. Maternal, Newborn and Child Health, Institute for Disease Modeling, Bellevue, Washington, USA.
17. Centre of Excellence for Sickle Cell Disease Research and Training, University of Abuja, Abuja, Nigeria.
18. Department of Child Health, Komfo Anokye Teaching Hospital, Kumasi, Ghana.
19. Computational Biology Division, Faculty of Health Sciences, Cape Town, South Africa.