title: Anti-pre-S2 as only serum HBV marker: possible relation to HBV-2 infection.
mesh_terms: D007560:Cote d'Ivoire; D000939:Epitopes / Q000276:immunology; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006514:Hepatitis B Surface Antigens / Q000276:immunology*; D006515:Hepatitis B virus / Q000145:classification*; D006801:Humans; D011498:Protein Precursors / Q000276:immunology*; D014759:Viral Envelope Proteins / Q000032:analysis*
chemical_list: D000939:Epitopes; D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens; D011498:Protein Precursors; D014759:Viral Envelope Proteins; C050807:presurface protein 2, hepatitis B surface antigen