title: Detection of hepatitis B surface antigen by Elisa technique using penicillinase (beta-lactamase) labelled caprine antibody to HBsAg.
mesh_terms: D000818:Animals; D004797:Enzyme-Linked Immunosorbent Assay; D006041:Goats / Q000276:immunology; D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D010405:Penicillinase; D001618:beta-Lactamases
chemical_list: D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens; D010405:Penicillinase; D001618:beta-Lactamases