title: Some approaches to deciding HB Ag (Australia antigen) positivity by counterimmunoelectrophoresis.
mesh_terms: D001782:Blood Donors; D003377:Countercurrent Distribution / Q000379:methods; D006509:Hepatitis B / Q000276:immunology; D006511:Hepatitis B Antigens / Q000032:analysis*; D006801:Humans; D007122:Immunoelectrophoresis / Q000379:methods; D007457:Iodine Radioisotopes; D011863:Radioimmunoassay
chemical_list: D006511:Hepatitis B Antigens; D007457:Iodine Radioisotopes