1. Cincinnati Children's Hospital Medical CenterCincinnatiOhio
2. Centre Hospitalier MonkoleKinshasaDRC
3. Hospital Pediátrico David BernardinoLuandaAngola
4. University of TorontoTorontoCanada
5. Cohen Children's Medical CenterNew Hyde ParkNew York
6. University of Nebraska Medical CenterOmahaNebraska
7. Mbale Regional Hospital Clinical Research UnitMbaleUganda
8. KEMRI/Wellcome Trust Research ProgrammeKilifiKenya
9. Department of MedicineImperial CollegeLondonUK
10. The Hospital for Sick ChildrenTorontoCanada