title: A previously unrecognized laboratory hazard: hepatitis B antigen-positive control and diagnostic sera.
mesh_terms: D000956:Antigens, Viral / Q000032:analysis*; D006505:Hepatitis / Q000097:blood / Q000276:immunology* / Q000382:microbiology / Q000517:prevention & control; D006511:Hepatitis B Antigens / Q000032:analysis; D006801:Humans; D007757:Laboratory Infection / Q000097:blood / Q000276:immunology / Q000382:microbiology / Q000517:prevention & control*; D011863:Radioimmunoassay; D012703:Serotyping
chemical_list: D000956:Antigens, Viral; D006511:Hepatitis B Antigens