1. Medical Research Council Laboratories, Fajara, The Gambia,
2. Imperial College School of Medicine, London, UK,
3. Children's Hospital, Hannover Medical School, Hannover, Germany,
4. Royal Victoria Hospital, Banjul, The Gambia,
5. WEC Mission Hospital, Sibanor, The Gambia,
6. Central Statistics Department, Government of The Gambia, The Gambia,
7. London School of Tropical Medicine and Hygiene, London, UK