title: HBsAg detection by micro-ELISA.
mesh_terms: D003378:Counterimmunoelectrophoresis; D004797:Enzyme-Linked Immunosorbent Assay; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006525:Hepatitis, Viral, Human / Q000276:immunology*; D006801:Humans; D007124:Immunoenzyme Techniques
chemical_list: D006514:Hepatitis B Surface Antigens