title: Enzyme-immunoassay for HBsAg.
mesh_terms: D004797:Enzyme-Linked Immunosorbent Assay; D005069:Evaluation Studies as Topic; D006514:Hepatitis B Surface Antigens / Q000302:isolation & purification*; D006801:Humans; D007124:Immunoenzyme Techniques; D011863:Radioimmunoassay
chemical_list: D006514:Hepatitis B Surface Antigens