1. Department of Obstetrics and Gynecology, School of Medicine and Dentistry; University of Ghana; Accra Ghana
2. Department of Obstetrics and Gynecology; Korle-Bu Teaching Hospital; Accra Ghana
3. Ghana Institute of Clinical Genetics; Accra Ghana
4. Department of Hematology; Korle-Bu Teaching Hospital; Accra Ghana
5. Department of Hematology, College of Health Sciences; University of Ghana; Accra Ghana
6. Department of Physiology, School of Biomedical and Allied Health Sciences; University of Ghana; Accra Ghana
7. Department of Anesthesia; Korle-Bu Teaching Hospital; Accra Ghana
8. Department of Medicine and Pediatrics, Vanderbilt-Meharry Center of Excellence in Sickle Cell Disease; Vanderbilt University Medical Center; Nashville Tennessee
9. Department of Obstetrics and Gynaecology; Duke University; Durham North Carolina
10. Statistical Consultant; Chicago Illinois
11. Global Health Institute; Vanderbilt University Medical Center; Nashville Tennessee