title: Confirmation of specificity by neutralisation in immunoradiometric assay for hepatitis B surface antigen.
abstract: Two types of neutralisation or blocking test using human anti-HBs are described for the confirmation of positive results obtained by immunoradiometric screening for HBsAg.
mesh_terms: D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D009500:Neutralization Tests; D011863:Radioimmunoassay
chemical_list: D006514:Hepatitis B Surface Antigens