Hepatitis B and Delta virus are prevalent but often subclinical co-infections among HIV infected patients in Guinea-Bissau, West Africa: a cross-sectional study.
Hønge BL, Jespersen S, Medina C, Té Dda S, da Silva ZJ, Lewin S, Østergaard L, Erikstrup C, Wejse C, Laursen AL, Krarup H, Bissau HIV cohort study group