1. Medical Research Council (MRC) Unit, The Gambia; Banjul The Gambia
2. Department of Infectious Disease Epidemiology; London School of Hygiene and Tropical Medicine; London UK
3. Emerging Disease Epidemiology Unit; Institut Pasteur; Paris France
4. Department of Hepatology; Imperial College London; London UK
5. The Gambia Hepatitis Intervention Study; IARC, c/o MRC Unit, The Gambia; Banjul The Gambia
6. Ministry of Health and Social Welfare; Banjul The Gambia
7. Edward Francis Small Teaching Hospital, The Gambia; Banjul The Gambia
8. International Agency for Research on Cancer (IARC); Lyon France