title: The enigma of concurrent hepatitis B surface antigen (HBsAg) and antibodies to HBsAg.
authors.forename: Wolfram H
authors.initials: WH
authors.lastname: Gerlich
mesh_terms: D006510:Hepatitis B Antibodies / Q000097:blood*; D006514:Hepatitis B Surface Antigens / Q000097:blood* / Q000276:immunology*; D019694:Hepatitis B, Chronic / Q000276:immunology*; D006801:Humans
chemical_list: D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens