title: Two antigenic specificities in the Australia antigen.
mesh_terms: D015478:Antigens, Heterophile / Q000032:analysis; D002353:Carrier State; D002648:Child; D004314:Down Syndrome / Q000276:immunology*; D006509:Hepatitis B / Q000276:immunology*; D006511:Hepatitis B Antigens / Q000032:analysis*; D006801:Humans
chemical_list: D015478:Antigens, Heterophile; D006511:Hepatitis B Antigens