title: Hepatitis B surface antigen: decreased need for confirmation of reactive results.
authors.forename: J E
authors.initials: JE
authors.lastname: O'Brien
mesh_terms: D000328:Adult; D006679:HIV Seropositivity / Q000097:blood; D006514:Hepatitis B Surface Antigens / Q000097:blood*; D006801:Humans; D007124:Immunoenzyme Techniques; D008297:Male; D011863:Radioimmunoassay
chemical_list: D006514:Hepatitis B Surface Antigens