modèle (3) infection (3) Treatment (3) Costs (3) Strategy (3) Social sciences (3) Science (3) Infection (3) Impact (3) Hepatitis B virus (3) Hepatitis B (3) Example (3) thérapie (2) programme (2) surveillance (2) santé (2) âge (2) comparaison (2) abords (agglomération) (2) Afrique (2) Gambie (2) Monitoring (2) Comparison (2) Therapeutics (2) Perspective (2) Persons (2) Natural history (2) Human beings (2) Life (2) Health (2)