title: A new radioimmunoassay for hepatitis B surface antigen.
mesh_terms: D005069:Evaluation Studies as Topic; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D011863:Radioimmunoassay / Q000379:methods; D011933:Reagent Kits, Diagnostic
chemical_list: D006514:Hepatitis B Surface Antigens; D011933:Reagent Kits, Diagnostic