1. RTI International, Research Triangle Park North Carolina Durham USA
2. Benioff Children's Hospital University of San Francisco San Francisco California USA
3. Vitalant Research Institute San Francisco California USA
4. Laboratório de Medicina Laboratorial LIM 03‐ HCFMUSP São Paulo Brazil
5. Fundação Hemominas Juiz de Fora Juiz de Fora Brazil
6. Department of Hematology Fundação de Hematologia e Hemoterapia de Pernambuco, HEMOPE Pernambuco Brazil
7. Division of Hematology and Oncology, Department of Pediatrics Baylor College of Medicine Houston Texas USA
8. Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA
9. Department of Medicine University of Illinois at Chicago Chicago Illinois USA
10. Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine University of Pittsburgh Pittsburgh Pennsylvania USA
11. Department of Medicine, Center for Sickle Cell Disease Howard University Washington District of Columbia USA
12. Instituto de Medicina Tropical University of São Paulo São Paulo Brazil
13. Department of Laboratory Medicine University of California San Francisco USA