1. Division of Hematology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH;
2. Central Public Health Laboratories, Ministry of Health, Kampala, Uganda;
3. Department of Pediatrics and Child Health, Makerere University College of Health Sciences, Kampala, Uganda;
4. Erythrocyte Diagnostic Laboratory, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH; and
5. Ministry of Health, Kampala, Uganda